Almost half of the Reservation is
covered by lakes, streams, rivers, and wetlands. This includes:
- Five major watersheds.
- 23 lakes.
- 3,600 acres of fisheries and
wild rice areas;
- 10 lakes have maximum depths
greater than 15 feet – Big, Lac, Joe Martin, Third, Spruce, West
Twin, Perch Lake North, Pat Martin, Fire Tower, and an unnamed
lake near Fire Tower Lake;
- 96 miles of streams and rivers.
- 4 trout streams (34 miles) – Big
Otter Creek, Martin Branch, Little Otter Creek, and Fond du Lac
Creek;
- All streams drain to the St.
Louis River except for a small drainage in the south central
portion of the Reservation that is the headwaters to the
Moosehorn River;
- The St. Louis River, which forms
the northern border of the Reservation, is the largest U.S.
tributary to the Great Lakes;
- Many scenic, pristine areas that
provide habitat for a multitude of aquatic and terrestrial
wildlife.
Fond du Lac Lakes and Streams
Data Table - statistical information about the many lakes
and waterways on the Fond du Lac Reservation.
Requires Microsoft Excel to view.
Data Table Explanation - A
general overview of the data table. A laymen's guide to what the
figures mean and some of the collection methods applied.

The waters of the Fond du Lac
Reservation are very important to
the Fond du Lac Band, and should be treated with respect and care.
Watersheds of the
Fond du Lac Reservation
Each of the lakes and streams on the
Reservation is contained within a watershed. A watershed is an area
of land that drains to a body of water. Smaller watersheds flow into
bigger watersheds. For instance, nearly all of the smaller
watersheds on the Reservation flow into the St. Louis River. The St.
Louis River watershed flows into Lake Superior, meaning the
Reservation is ultimately part of the Lake Superior watershed. The
words Fond du Lac mean “head of the lake,” so the watershed is even
identified in the Reservation’s name!

Stoney Brook Watershed
Wild Rice Lakes
Fisheries Lakes
Other Lakes
Streams
Simian Creek Watershed
Lakes
Streams
Fond du Lac & Otter Creek Watershed
Lakes
Streams
Moosehorn River Watershed
St. Louis River Watershed
STONEY BROOK WATERSHED

This is Fond du Lac’s largest
watershed. It comprises nearly half of the land acreage of the
Reservation. Stoney Brook no longer runs in its historic channel;
since the early 1900s, it has flowed through 47 miles of man-made
ditches. These ditches were dug in a failed attempt to drain the
land and make it useful for agriculture. Instead, the land was
converted from one wetland type to another, and between 2,000 and
4,000 acres of wetlands were lost. The ditching also had a serious
impact on fish, wildlife, and wild rice.
The Reservation’s most important wild
rice lakes occur within the Stoney Brook watershed. The ditch system
has altered the timing and amount of water that enters these lakes
from Stoney Brook, which reduces wild rice production. The Fond du
Lac Natural Resources Program has established a system of water
control structures to mitigate the effects of the historical
ditching by managing water levels in five of the wild rice lakes
(Perch Lake, Rice Portage Lake, Deadfish Lake, Jaskari Lake, and Mud
(Miller) Lake). In addition, the Natural Resources Program is
working on restoring the historical extent of wild rice on these
lakes by cutting and removing vegetation that has increased and
out-competed wild rice since the ditches were dug. Ditching has also
significantly degraded in-stream aquatic habitat throughout most of
the drainage. Research is underway to understand the hydrology of
the current system in order to optimally manage for wild rice, and
potentially restore Stoney Brook to at least some of its original
hydrology.
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THE
WILD RICE LAKES OF THE STONEY BROOK WATERSHED:
PERCH LAKE
Perch
Lake serves as the headwaters of Stoney Brook; it is divided into
two basins joined by a narrow channel. The southern 385-acre basin
supports wild rice and is about 2½ feet deep, and the 246-acre
northeastern basin is deeper (16 ft), which provides good fish
habitat. Perch Lake was partially drained by a ditch system dug in
1921, and a dam was constructed across the outlet to the lake in
1936 to maintain lake water levels. A new water control structure
was completed in 1999 to better manage lake levels, to help control
competing vegetation, and help prevent winter oxygen depletion
within the basin. Wild rice restoration work is focused on removing
pickerelweed, white water lily, and yellow water lily by mechanical
cutting and collection. Restoration will be ongoing, and the areas
that were “restored” to wild rice have for the most part been
recolonized by pickerelweed. Perch Lake supports a diverse array of
wildlife, including sandhill cranes, loons, frogs, eagles, and
various other waterfowl and fish species.
JASKARI LAKE
Jaskari
Lake covers 79 acres; water flows from Perch Lake into this lake.
Jaskari Lake is shallow and most of the area supports wild rice,
except for a round deep spot on one end of the lake. This deep spot
is clearly visible when the wild rice is growing, as shown in the
aerial photograph included here. Because access is limited on this
lake, no vegetation cutting has occurred, but wild rice often grows
well on this lake. Vegetation cutting and restoration work is
planned for between 15 and 20 acres of the lake upon completion of
an equipment landing. The restoration work will likely take place
beginning in late 2008 or early 2009.
RICE PORTAGE LAKE
Before
ditching, Rice Portage Lake was a 634-acre wild rice lake with
extensive associated wetlands. It was the largest wild rice lake on
the Reservation. The ditch system drained the lake until it only had
114 acres of open water wild rice habitat. The remaining 520 acres
of this lake became so shallow that cattail, sedges, horsetail, and
other wetland plants now dominate the nearshore habitat. In the
early 2000s, the water control structure at the lake’s outlet was
used to raise water levels on Rice Portage Lake, which restored the
lake from its
diminished
area to its historical size of 634 acres. In 2001, several acres of
competing vegetation were cleared and seeded with 1,500 lb. of wild
rice. In 2002, wild rice germinated in the restored area. In recent
years, wild rice stands have returned to the areas where cutting has
occurred, (see picture above), and vegetation management is ongoing.
MUD LAKE
This
151-acre lake, also known as Miller Lake, is connected by a ditch to
the north end of Rice Portage Lake. Unlike the other wild rice
lakes, the water level in this lake is controlled by sandbags rather
than dams or other water control structures. Because it is only
accessible by a 1,000 ft boardwalk through a bog, few people use Mud
Lake for purposes other than hunting waterfowl or harvesting rice.
Wild rice is not as abundant on this lake as the Reservation’s other
wild rice lakes, and it has not yet been determined whether this
lake should be actively managed for wild rice. This lake is
classified as a wild rice lake, and only in the past ten years has
it been rated as “poor” for wild rice; historically this was one of
the better wild rice lakes on the Reservation. The lake has been
managed at a much lower level than in the past decades; the Natural
Resources program will begin experimenting with higher water levels
to see if wild rice production increases. Thus far, water level
management has been limited to removing beaver dams or placing sand
bags. A pair of loons, 26 swans, flocks of ducks, and a moose cow
with its calf have been seen on this lake.
DEADFISH LAKE
Deadfish
Lake is a 101-acre wild rice lake; it is very popular with ricers on
the Reservation. Unlike the Reservation’s other wild rice lakes,
Deadfish has two dams: one dam is at the outflow and the other is an
impoundment dam at the inflow, about a mile upstream of the lake.
Because water level fluctuations (the bounce) in this lake can be
drastic enough to kill wild rice, the dam upstream of the inflow of
the lake impounds water and prevents it from inundating the lake.
Since the impoundment and the outlet dam were constructed, the wild
rice has grown well on the lake. Deadfish supports a multitude of
waterfowl, including ducks, herons, sandhill cranes, swans, and
loons.
BANG LAKE
Though
this lake does support a small stand of wild rice, it is not often
used for harvesting by the Band. The lake has about 20 seasonal and
year-round residences on its shore, with some problems associated
with shoreline vegetation removal by homeowners. Because the wild
rice stands are very dense around the perimeter of this lake, it is
a problem when homeowners remove it because wild rice is an annual
plant that must drop its seeds in the water every year to ensure
future wild rice growth. Many types of animals use this lake,
including a muskrat making a pile from wild rice stalks, a breeding
pair of loons with an obvious nest, and a pair of red-headed ducks.
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THE
FISHERIES LAKES OF THE STONEY BROOK WATERSHED:
BIG LAKE
This is the most popular recreational
lake on the Reservation. The MN DNR monitors and assesses the
fishery of Big Lake, and in the past has stocked walleyes, though
there is no evidence of a self-sustaining walleye population.
Opportunities to fish for bluegill make it a popular spot for
families. Even so, Big Lake has many problems.
Big Lake has the most highly
developed lakeshore of the Reservation lakes and with it the
attendant problems of development, including increased stormwater
runoff, algae blooms, habitat fragmentation, and noncompliant septic
systems that spill raw sewage into the water. To learn more about
the Big Lake Wastewater Project, click the link on the Water
Program’s front page. In addition, the volume of nonresident usage
of the lake increases the potential for introduction of invasive
species. The Reservation maintains a public beach (Molestad’s beach)
on the north end of the lake, and the Environmental Program is
working on two issues with the beach: excessive beach erosion and
regular monitoring of bacteria levels to insure the water is safe
for swimming.
Even though Big Lake exists within
the Stoney Brook watershed, drainage from Big Lake is more than
likely not tied to the Stoney Brook Watershed. Roads and development
have isolated the Big Lake watershed and disrupted historic drainage
patterns. The road at the southwest corner of the lake appears to
block the drainage to the wetland draining to Sofie Lake. The Big
Lake outlet may flow to the Moosehorn River Watershed via Wild Rice
Lake. Another possibility is drainage into the Simian Creek
Watershed to the northeast through a low gradient ditch that crosses
the intersection of Cary Road, Ditchbank Road, and Big Lake Road
during overflows. However, this drainage is also blocked by a
driveway without a culvert. Further research is needed to discover
how Big Lake is hydrologically connected to the other waters of the
Reservation.
JOE MARTIN LAKE
This
lake stands alone, in more ways than one. It is the only large lake
in the northwestern part of the Reservation, and it sits in the area
of the Reservation with the most topographical relief. Joe Martin
Lake has the biggest Daphnia, a type of zooplankton, on the
Reservation, and these Daphnia serve as a good food source for
bluegill. The lake has natural populations of black crappie,
largemouth bass, sunfish, and northern pike. With depths over 75
feet, Joe Martin Lake is also the deepest lake on the Reservation.
Because of its depth, dissolved oxygen levels drop from near 90% at
the surface to near 0% at about 15 feet deep during the summer
months. With steep slopes surrounding the lake and the existence of
logging roads and timber production, erosion and sedimentation have
become a concern. Some work is being done in this area with the
Natural Resources Conservation Service, but more is needed. Only
about 10-15 homes and cabins have been built on the shore of this
lake. Yellow lady’s slipper blooms along the shore, and flocks of
swallows eat the large swarms of midges that hatch out of the lake
in the spring.
LOST LAKE
Lost
Lake is a primary fishery lake on the Reservation, but there is no
public access to this lake. Surveys have identified largemouth bass,
bluegill, walleye, and northern pike populations. About 10-15 cabins
and homes have been built within this basin. This is a lovely clear
water lake, and it is shallow enough to support aquatic vegetation
throughout the entire basin. This lake is surrounded by a dense
stand of hardwoods with some large pines intermixed. A bog on the
west side of the lake supports one of the most diverse plant
communities on the Reservation.
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OTHER LAKES IN THE STONEY BROOK WATERSHED
Lac
Lake (pictured here) is one of several lakes on the Reservation that
has been designated as one of the Reservation’s Aesthetic Waters,
meaning it possesses exceptional beauty. Though both Lac Lake and
Spring Lake are fairly pristine, like all lakes on the Reservation,
they may contain mercury that can get into the tissues of fish and
other aquatic wildlife. Spruce Lake (also known as Spirit Lake),
could potentially experience agricultural impacts from cattle
grazing nearby, but monitoring data do not indicate any adverse
effects as of yet. Sofie Lake has two homes along the lakeshore,
which are set well back from the shoreline, and monitoring data have
not revealed any apparent impacts. Largemouth bass and panfish have
been identified in past surveys. Hardwood Lake has little shoreline
development (difficult access), but beaver activity at the outflow
may be raising water levels above what is considered optimal for
wild rice growth. Side Lake has a single residence, abundant wild
rice growth, and no apparent nonpoint source impacts.
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STREAMS IN THE STONEY BROOK WATERSHED
STONEY BROOK
Most
of Stoney Brook has been re-routed into a series of ditches, though
the last three miles of the downstream portion, where Stoney Brook
empties into the Saint Louis River, remain intact. Martin Branch
flows east to meet Stoney Brook at this intact portion, and it is
also here that Stoney Brook retains high quality habitat, with
intact banks, low embeddedness, and diverse macroinvertebrate
(including lots of crayfish!) and fish communities (including rock
bass). The word “macroinvertebrate” means an animal without a
backbone that is visible to the naked eye, in this case, an aquatic
insect or larva. Aerial photos show remnants of the original stream
bed near where ditching has occurred throughout this watershed. An
ongoing study of the surface water and groundwater interactions
within this watershed will help us understand the hydrology of the
current system. From there, the Office of Water Protection and the
Natural Resources Program can identify opportunities for restoration
projects to reconnect original stream reaches to the system, and
help manage lake levels for wild rice.
ANNAMHASUNG CREEK
Annamhasung Creek is essentially a ditch, with little or no baseflow
in the natural stream channel, but as this is a small stream, the
impaired natural habitat is construed as a moderate nonpoint source
impact. This stream is not included in routine monitoring, though
some data do exist to show that local livestock operations do not
contribute to elevated nitrogen or phosphorus concentrations in the
stream.
MARTIN BRANCH
|

Impounded water drains into Martin
Branch where a collapsed culvert has dammed the stream.
|

Martin Branch as a small tributary
that supports young brook trout. |
Martin Branch, which flows into
Stoney Brook just before it joins the St. Louis River, has
substantial beaver activity along its drainage. It has both high
quality habitat and extremely degraded aquatic habitat
(sedimentation along a county highway bridge; collapsed culvert) in
different reaches. This stream is the focus of a restoration project
for a collapsed culvert, and a comprehensive watershed restoration
planning effort. This creek has a diverse array of fish species.
SPRING CREEK
Spring Creek, a small tributary to Martin Branch, has no apparent
nonpoint source pollution impacts.
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SIMIAN CREEK WATERSHED

Simian (pronounced “Simon”) Creek
Watershed appears very healthy, according to monitoring data.
Stressors in this watershed include non-compliant septic systems
that leak sewage into surface waters, and runoff from farming or
cattle operations. There is also concern that invasive species could
be introduced to the system through the public boat landing at West
Twin Lake. However, there is very little development in this
watershed, and many of the lakes remain in pristine condition. This
is the only watershed in the Reservation that is entirely contained
within the Reservation’s boundaries. All other watersheds include
land that is outside the Reservation’s boundaries.
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LAKES OF
THE SIMIAN CREEK WATERSHED
SIMIAN LAKE
Simian
Creek flows into the southern end and out of the northern end of
Simian Lake, and the waters are highly colored or stained with
dissolved carbon. Because the stream flows through the lake, the
retention time for water in the lake is shorter than in other
Reservation lakes. After the severe drought of 2007, it was the
first lake to rebound during the fall rains. While there are
residences in the watershed, there is little shoreline impact from
humans. It is a productive lake, supporting a good northern pike
fishery. A mating pair of swans has used this lake in the past as
their summer home.
PAT MARTIN LAKE
This
is a 35-acre kettle bog lake. A kettle lake is formed by past
glacial activity on the landscape. Pat Martin Lake formed when a
chunk of glacier ice was deposited at the end of a melting glacier;
the ice chunk created a depression that filled with water when the
ice melted. The shore of this undeveloped lake is surrounded by a
spruce bog and a floating sphagnum mat, which provides good cover
for fish. Its waters are extremely soft (very few dissolved
minerals) and lightly colored by dissolved carbon. The fish
community includes yellow perch, black crappie, and largemouth bass.
Similar bog lakes on the Reservation include East Twin Lake and
Spruce (Spirit) Lake.
WEST TWIN LAKE
This
lake has two basins: shallow and bog- rimmed on the north; deeper
and hardwood-forested on the south (with stunning fall foliage), and
a rocky shoal and sand bar separating the two. MN DNR assessments
have identified yellow perch, crappie, and northern pike. The DNR
periodically stocks the lake with walleye, though there is no
evidence of any natural reproduction. There are about 12 residences
surrounding the south basin, and a public access for boats. During
the 2007 drought, water levels in this lake dropped to the point
that the public access ramp was left high and dry. This lake, along
with Pat Martin Lake and Simian Lake, are the primary fisheries
lakes within the Simian Creek Watershed.
EAST TWIN LAKE
East
Twin Lake has a single seasonal cabin but no other apparent
potential impacts. Most of the shoreline is covered by black spruce
trees, but past logging activity is apparent where a distinct patch
of hardwoods grows along a section of shoreline.
CEDAR LAKE
There
is concern about a severe decline in wild rice productivity in Cedar
Lake over the past two decades, and it should be the focus of a
watershed study to determine the causes of the decline. While Cedar
Lake has experienced a loss in wild rice productivity, traditional
water quality parameters (including the sulfate criterion for wild
rice waters) have not been exceeded in any of the samples collected.
Since small populations of wild rice continue to germinate annually,
the potential exists for reestablishment of healthy wild rice
populations, once the stressor(s) have been identified and
mitigated. One likely culprit is water level, which will be managed
beginning in 2008 by removing beaver dams. The Natural Resources
program also reseeded a test plot in 2007. Another possible culprit
is copper sulfate, which the MN DNR puts in lakes to assist with the
removal of fish. Copper sulfate can cause high sulfate levels in the
lake sediments, and this can be toxic to wild rice seedlings, even
if sulfate levels in the water are low. The nonpoint source impacts
to Cedar Lake are considered moderate. A flock of swans congregated
on this lake in 2007, probably because this lake is relatively
undisturbed by people.
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STREAMS OF THE SIMIAN CREEK WATERSHED
SIMIAN CREEK
Some
of the greatest diversity of stream macroinvertebrates can be found
at the permanent monitoring station on Simian Creek, less than a
mile from the confluence with the St. Louis River. The word
“macroinvertebrate” means an animal without a backbone that is
visible to the naked eye, in this case, an aquatic insect or larva.
High macroinvertebrate diversity is a sign of stream health, because
certain species are not tolerant of pollution. When these sensitive
species are found in a stream, it means the stream itself does not
receive a significant amount of pollution. Because we have a
long-term monitoring database of macroinvertebrate diversity, we can
detect any changes or stream degradation, and work to rectify any
problems. Simian Creek also has high fish species diversity.
To learn more about
macroinvertebrates, and to view pictures of various species, click
this link:
http://watermonitoring.uwex.edu/wav/monitoring/biotic.html
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FOND DU LAC CREEK AND OTTER CREEK WATERSHED

This watershed is the most heavily
developed on the Reservation. Tribal headquarters, the school, and
other administration buildings exist on the eastern side of the
watershed (see red areas in the map above), and the Black Bear
casino and golf courses are undergoing expansion on the southeastern
side of the watershed. New development is usually reviewed to reduce
the amount of habitat fragmentation, maintain buffers around water
bodies, and to control the amount of impervious surface.
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LAKES OF
THE FOND DU LAC CREEK AND OTTER CREEK WATERSHED
SECOND LAKE
In
spite of obvious runoff from Big Lake Road, which is immediately
adjacent to the northern shoreline of Second Lake, no water quality
impairments have been detected. This lake is relatively small and
shallow, and it attracts species such as seagulls and Canada geese.
This picture, taken in 2007, exemplifies the severity of the summer
drought, for the green expanse in the middle of the picture is
usually under water.
THIRD LAKE
Fond
du Lac Office of Water Protection’s monitoring work shows that Third
Lake is has significant nonpoint source impacts. Manure management
at a small horse farm on the shore of the lake is a problem because
it causes soil erosion that washes sediments into the water and
allows animal wastes to get into the lake. Third Lake experiences
heavy summer algal blooms, leading to decreased water clarity and
high pH readings. Measurements of Secchi disk depth (a water clarity
parameter), total phosphorous, and chlorophyll a (a measure of lake
productivity), indicate this lake has undergone eutrophication,
meaning enough nutrients have entered the lake to increase
productivity (mostly algae), and reduce stability. In short, this
lake is severely impaired. Mid-summer daytime pH readings have
exceeded 9 on several dates (7 is neutral), most likely from high
rates of photosynthetic activity, which is likely to impact aquatic
organisms. The zooplankton in this lake are smaller in size than in
other Reservation lakes, and the community as a whole exhibits
reduced diversity. This may indicate the presence of environmental
or ecological stressors. Turbidity readings from Third Lake are
greater than in any of the other monitored water bodies on the
Reservation. The two lakes closest to Third Lake, First Lake and
Second Lake, are shallow lakes oriented east-west on the landscape.
In contrast, Third Lake is deep (20 ft) and oriented north-south on
the landscape. Because of these differences, there is some question
as to whether this bathtub-like lake is manmade. Regardless of its
origins, working with landowners will be key to improving water
quality in this lake.
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STREAMS
OF THE FOND DU LAC CREEK AND OTTER CREEK WATERSHED
FOND DU LAC CREEK
Fond
du Lac Creek is a designated trout stream, so it is closely
monitored for nutrients, temperature, and habitat integrity to
ensure that trout can survive in this stream. The most significant
apparent impact to Fond du Lac Creek is the poorly installed culvert
under Reservation Road, which is perched too high to accommodate
fish passage and maintain the hydrologic connection to the St. Louis
River. Aside from this obvious physical impairment, however,
monitored habitat quality and water quality parameters indicate a
relatively healthy coldwater stream ecosystem, supporting a diverse
macroinvertebrate assemblage and fish community. Nonpoint source
impacts are considered moderate.
BIG OTTER CREEK AND LITTLE OTTER
CREEK
|

Big Otter Creek as it flows through
the golf course. |

Big Otter Creek in its natural
state. |
Big Otter Creek is also a designated
trout stream, and is closely monitored for impacts from commercial
and recreational development at the Black Bear complex, including
the golf course. Impervious surface runoff from parking lots and
rooftops during storm events carries toxic chemicals, nutrients, and
road deicing salt and contributes heated runoff to thermally
sensitive streams. Stormwater Best Management Practices have been
put in place, both at the new casino and the golf course, including
buffers that prevent stormwater from entering into and polluting the
stream. Before the casino complex and golf course were built, this
site contained a gravel pit and the stream alterations existed when
the land was purchased by the Band.
The Office of Water Protection was
instrumental in recommending course design changes, identifying
potential mitigation projects, and developing comprehensive
monitoring plans for water quality and erosion control on the golf
course. Routine erosion control inspections proved effective in
preventing sedimentation problems in Big Otter Creek and adjacent
wetlands during construction. Aerial photography was acquired during
pre- and post- construction to identify areas of ground water
intrusion in the wetland buffer zone between the course and Big
Otter Creek. Four observation wells were established in this buffer
zone before construction commenced, and four additional wells were
established on the course after completion. Ground water has been
routinely monitored in the observation wells for nutrients, nitrate,
pesticides and herbicides beginning in 2003 in order to detect
potential impacts to shallow ground water, the adjacent wetlands,
and Big Otter Creek.
The headwaters of Little Otter Creek
drain the area south of Big Otter Creek. Because it is a small
headwater stream that contains trout, it is considered a sensitive
stream. When the US Forest Service conducted logging near the
stream, they put a 200 ft no-logging buffer around the Little Otter
Creek to protect it. Aerial photos show that the headwater region
may have been channelized in the past. Other threats to water
quality include nearby farms and an auto salvage yard that sits
directly on the bank of the stream.
JOLICEUR CREEK
This
small, spring-fed coldwater creek flows into Big Otter Creek near
the Cloquet-Carlton County airport. The Reservation has funds to
repair failed culverts that have caused this creek to pond on either
side of a small roadway. The water temperatures in Joliceur Creek
are cold enough to support trout, though the Reservation has no
recent monitoring data to confirm that trout exist in this stream.
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MOOSEHORN RIVER WATERSHED

This watershed is the only area of
the Reservation that does not drain to the St. Louis River and Lake
Superior; this watershed drains to the Kettle River, the St. Croix
River, and ultimately into the Mississippi River. There is concern
that invasive species such as carp may work their way upstream and
onto the Reservation – they are present in downstream watersheds.
Carp are a threat to wild rice because their foraging behavior
uproots the shallow-rooted rice.
WILD RICE LAKE
Wild
Rice Lake is the headwaters of the Moosehorn River, which exits the
lake under Highway 210. Beaver activity, as well as culverts that
were installed too high and are improperly maintained, and the fact
that that are not enough culverts to ensure proper drainage, have
altered water levels, impacting wild rice productivity in Wild Rice
Lake. Since other monitored water quality parameters do not indicate
stressors that could affect wild rice, water depth is believed to be
the major contributor to the declining wild rice densities in this
lake. Efforts to clear and maintain culvert drainage, coupled with
active reseeding efforts, are leading to a gradual but measurable
increase in wild rice stands. Clemson pond levelers were installed
to help drain the lake through the culverts even when beavers dam
the passage. There is also a potential impact to the lake from
roadway maintenance (plowing, deicing chemicals, and right-of-way
herbicide applications). As the nonpoint source impacts appear to be
reversible (with specific intervention techniques proving
successful), the severity of impairment is considered moderate.
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ST. LOUIS RIVER WATERSHED

The 3,584 mile St. Louis River
watershed is arguably the most pristine major river system in
Minnesota. Preserving the high quality ecological functions within
the watershed should be the goal of future management activities.
The
St. Louis River represents the extreme headwaters of the St.
Lawrence River. At 194.5 miles long, the St. Louis River flows from
its headwaters at Seven Beaver Lake in northeastern Minnesota, to
its outlet at the Lake Superior entry along Minnesota Point. When
the river nears Lake Superior, it widens substantially to form an
important freshwater estuary. The portion of the St. Louis River
that flows through the Reservation has a narrower channel and
includes numerous first-order and second-order unnamed tributaries
that drain directly into the river. The aquatic habitat within this
reach of the St. Louis River is relatively healthy and intact, with
no significant modifications. Monitoring at the Highway 2 bridge
reconstruction has detected negligible erosion control problems on
site.
In
2005, a survey of the St. Louis River was completed through a
collaborative effort between Fond du Lac’s Resource Management
Division, the 1854 Treaty Authority, and Minnesota DNR Fisheries. By
sampling the river at regular intervals along its length, the field
researchers were able to get a sense of the physical and biological
health of the river. Data gathering included information on the
physical features of each reach that was studied, including width,
human structures, erosion sites, etc. Researchers also took data on
the water quality of each reach, including temperature,
conductivity, dissolved oxygen, pH, alkalinity, total hardness, and
color. Biological data collected included information on the
fisheries and macroinvertebrates in the river. Fish were also
collected for contaminant analysis. Overall, current physical and
biological conditions within the watershed are similar to those
reported in 1979.
Want to learn more about the Saint
Louis River? Go to the Saint Louis River Citizens Action Committee’s
homepage:
http://www.stlouisriver.org/
FIRST LAKE
First
Lake, which is near the urban/industrial area on the extreme
southern edge of this watershed, has been impacted by dredging and
filling along the shore. The lake also receives sediment from
stormwater drainage ditches and culverts at the intersection of Big
Lake Road and Reservation Road. Reservation Road cuts off
approximately 1/3 acre of the aquatic bed wetland from the main
lake. The 1/3-acre area used to be open water habitat that supported
ducks and their offspring, but it was illegally filled in the 1980s.
Monitoring data from First Lake shows the water is murkier than
similar shallow lakes nearby. The cumulative effects of the
hydrological and shoreline modifications have resulted in moderate
nonpoint source impacts that negatively affect the ecological
integrity of this lake. Despite these problems, Canada geese are
abundant on this lake, and swans and ducks use it as well.
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