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Chase Lake

Itasca County, MinnesotaLimited DataOligotrophic

Chase Lake sits at the top of the Minnesota PCA grading rubric with an A, a mark reached by the cleanest lakes in Minnesota. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Trophically, Chase Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. Chase Lake is unusually deep for Minnesota at 95 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. At 211 acres, Chase Lake fits the Minnesota median for monitored lakes, with 2.9 miles of shoreline. Chase Lake ranks 38 of 141 in Itasca County — solidly in the upper half of the local distribution.

No invasive species are currently listed at Chase Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye alongside the lake's other 10 documented species — a notable draw for Minnesota anglers. No formal public access is documented at Chase Lake — most use is by shoreline residents and their guests. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-08-19. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 21.7 ft down. Trophic State Index: 33.

MetricValueGrade
Water Clarity (Secchi Depth)21.7 ftA
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)33Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth95 ft
Surface Area211.34 acres
Shoreline Length2.9 mi
Littoral Zone32%
Public AccessNo

Fish Species

Click a species to see all Minnesota and Wisconsin lakes where it is found.

→ Best fishing times for Chase Lake (14-day solunar calendar)

→ Is it safe to eat fish from Chase Lake? (mercury & PFAS guide)

Chase Lake fishing regulations (limits, seasons, special rules)

Location

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County Ranking

Ranked #38 of 141 lakes in Itasca County

Nearby Lakes in Itasca County

DNR Fisheries Survey Summary

8 surveys on file from MN DNR Fisheries. Most recent: 2023-08-01 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluegill7.850.16 lb
Largemouth Bass5.871.01 lb
Northern Pike5.541.48 lb
Black Crappie4.000.58 lb
Yellow Perch3.010.18 lb
Tullibee (Cisco)2.410.51 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

Length Distributions

Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.

Bluegill

72 fish · 39 in · 2016-08-01
1890trophy 103456789

Largemouth Bass

92 fish · 517 in · 2016-08-01
1790567891011121314151617

Northern Pike

47 fish · 1240 in · 2016-08-01
950trophy 36121416182022242628303234363840

Black Crappie

59 fish · 512 in · 2016-08-01
21110trophy 1056789101112

From the 2023-08-01 survey

A temperature-dissolved oxygen profile was collected in the deepest basin on Chase Lake on August 1, 2023, to evaluate the amount of cold, oxygenated water (i.e., oxythermal habitat) available to Cisco, also known as Tullibee. Based on the profile, the top of the thermocline (i.e., the location in the water column…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Chase Lake. 2 reports on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Most recent sample: 2024-08-19

Monitoring stations: 1