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LakeQuality

Bass Lake

Cass County, Minnesota195 acresView mapDirections

Minnesota PCA publishes the water-quality measurements for Bass Lake. Here is what has been measured.

Phosphorus
9 µg/L
Less phosphorus than most
Measured by Minnesota PCA
Chlorophyll-a
2 µg/L
Less algae than most
Measured by Minnesota PCA
Max depth
55 ft
Bathymetric survey
Area
195 acres
Surface area
Shoreline
3.4 mi
Measured length
  • 55 ft max depth
  • Public access
  • Limited data

Bass Lake in Cass County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 2 µg/L. Maximum depth: 55 ft. Surface area: 194.75 acres.

Minnesota DNR's Targeted Survey on July 25, 2023 caught 4.28 largemouth bass per hour of electrofishing at Bass Lake. Length samples in the latest survey that recorded them ran 6–6 inches. DNR survey details →

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Bass Lake is a 195-acre lake in Cass County, Minnesota with a maximum depth of 55 feet. The lake supports 12 documented fish species including black crappie, bluegill, and hybrid sunfish. Public access is available.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-06-14. Methodology: how these readings are compared.

What Bass Lake is good for

From access and monitoring records, not editorial picks.

  • Fishing12 species recorded
  • Deep water55 ft surveyed max depth

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Bass Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Bass Lake

These are the measurements Minnesota PCA publishes for Bass Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. Phosphorus 9 µg/L. Chlorophyll-a 2 µg/L. TSI 37.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus9µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)2µg/LMeasured, not scored

The green pigment in algae — a direct measure of how much algae is in the water.

Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.37Oligotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

Ask about Bass Lake

Answers come straight from the public measurements and survey records on this page.

DNR fisheries survey

Minnesota DNR's Targeted Survey on July 25, 2023 caught 4.28 largemouth bass per hour of electrofishing at Bass Lake. Length samples in the latest survey that recorded them ran 6–6 inches.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Bass Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.

DNR Fisheries Survey Summary

8 surveys on file from MN DNR Fisheries. Most recent: 2023-07-25 (Targeted Survey).

8 surveys on file · most recent 2023-07-25 (Targeted Survey)

SpeciesCatch rate (CPUE)SizeAvg weight
Bluegill
42.89
3–8 in
2023-07-11
0.09 lb
Bluntnose Minnow
24.61
Largemouth Bass
16.83
6 in
2023-07-11
0.8 lb
Tullibee (Cisco)
14.00
7–14 in
2023-06-20
1 lb
Golden Shiner
12.44

CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.

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

52 fish · 3–8 in · 2023-07-11
1680345678

Largemouth Bass

1 fish · 6–6 in · 2023-07-11
106

Tullibee (Cisco)

99 fish · 7–14 in · 2023-06-20
412107891011121314

From the 2023-07-25 survey

Bass Lake is a 194 acre lake, with a maximum depth of 55', located six miles north of Outing in Cass County. Bass is in the Mississippi River-Grand Rapids watershed. A nearshore survey was conducted to assess the populations of both game and non-game fish species. Ten 100' long sampling stations were evenly spaced…

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 Bass Lake. 3 reports on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

Lake Details

Max depth

55 ft

Surface area

195 acres

Shoreline

3.4 mi

Littoral zone

22%

Share shallower than 15 ft

Public access

Yes

Listed by Minnesota PCA

Lake Size & Watershed

Watershed (drainage) area

4 sq mi

HydroLAKES / HydroSHEDS

Elevation

1,329 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Stays via Stay22

Stays near Bass Lake

Compare lakeside cabins, hotels, and vacation rentals near Bass Lake in Cass County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Bass Lake

Prices for Oct 9–11, 4 adults. Change dates on the map below.

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Fish Species

Click a species to see every lake where it is documented.

Fishing Bass Lake

Nearby Lakes in Cass County

Frequently asked questions about Bass Lake

Where is Bass Lake?

Bass Lake is a lake in Cass County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.

What is the water quality of Bass Lake?

Bass Lake in Cass County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 2 µg/L. Maximum depth: 55 ft. Surface area: 194.75 acres.

Measurements on this page ↑

Is Bass Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is Bass Lake?

Bass Lake has a maximum depth of 55 feet. The lake covers 194.75 acres.

What fish are in Bass Lake?

Fish species found in Bass Lake include black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, smallmouth bass, tullibee (cisco), walleye, yellow bullhead, yellow perch. Bass Lake is located in Cass County, Minnesota.

Fish on this page ↑

What did the DNR fisheries survey find at Bass Lake?

Minnesota DNR's Targeted Survey on July 25, 2023 caught 4.28 largemouth bass per hour of electrofishing at Bass Lake. Length samples in the latest survey that recorded them ran 6–6 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Bass Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

Can I fish at Bass Lake?

Public access to Bass Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.

Oligotrophic Lakes in Minnesota

Where this data comes from

2 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA2 samples · 2022

Analytical methods

  • Phosphorus by Two Reagent Colorimetry
  • 10200 H 2 ~ Chlorophyll a-b-c Determination by spectrophotometer
Monitoring station identifiers (1)

EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.

Other records on this page

Lake size & watershed from HydroLAKES (HydroSHEDS)

Lake details from Minnesota DNR LakeFinder