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LakeQuality

Cass Lake Pike Bay

Cass County, Minnesota4,756 acresView mapDirections

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

Clarity
13.6 ft
Clearer than most
Secchi · sampled 2025
Phosphorus
10.5 µg/L
Less phosphorus than most
Measured by Minnesota PCA
Chlorophyll-a
3.4 µg/L
Less algae than most
Measured by Minnesota PCA
Water temp
~56°F
Typical for Oct · EPA WQP
Max depth
95 ft
Bathymetric survey
Area
4,756 acres
Surface area
  • Mesotrophic
  • zebra mussel
  • 95 ft max depth
  • Public access
  • Limited data

Cass Lake Pike Bay in Cass County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 13.6 ft visibility. Phosphorus: 10.5 µg/L. Chlorophyll-a (algae): 3.4 µg/L. Maximum depth: 95 ft. Surface area: 4756.39 acres.

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Cass Lake Pike Bay is a 4,756-acre mesotrophic lake in Cass County, Minnesota with a maximum depth of 95 feet (25-foot average). The lake supports 20 documented fish species including black bullhead, black crappie, and bluegill. Public access is available. Compared to the 103 other monitored lakes in Cass County, Cass Lake Pike Bay ranks #87 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-10-15. Methodology: how these readings are compared.

Cass Lake Pike Bay covers about 4,800 acres in Cass County. The median ice-out date is April 25, which is when the open-water season begins. If you are planning to stay, you can search lake houses and cabins around Cass Lake Pike Bay on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.

What Cass Lake Pike Bay is good for

From access and monitoring records, not editorial picks.

  • Clear water13.6 ft of visibility
  • Fishing20 species recorded
  • Ice seasonIce-out around Apr 25
  • Deep water95 ft surveyed max depth
  • Big water4,756 acres

Swimming conditions

Readings only

Limited data

Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

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

Whether Cass Lake Pike Bay 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 Cass Lake Pike Bay

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

Good clarity, visible to about 13.6 ft. Phosphorus 10.5 µg/L. Chlorophyll-a 3.4 µg/L. TSI 40.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)13.6ftMeasured, not scored

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

Total phosphorus10.5µg/LGood
GoodFairPoor
Chlorophyll-a (algae)3.4µg/LGood
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.40Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Cass Lake Pike Bay

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

Water Temperature

Cass Lake Pike Bay typically sits around 56°F at the surface in October. Summer average is about 57°F. Usually warmest in Aug (about 59°F) and coldest in May (about 50°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
50°
May
54°
Jun
57°
Jul
59°
Aug
57°
Sep
56°
Oct
Nov
Dec

Column height runs from this lake’s coldest month (50°F) to its warmest (59°F).

Typical surface water temperature by month, from 216 field readings (2025–2025) via the EPA Water Quality Portal. See the full Cass Lake Pike Bay water temperature breakdown →

Lake Details

Max depth

95 ft

Average depth

25 ft

Surface area

4,756 acres

Shoreline

11 mi

Littoral zone

47%

Share shallower than 15 ft

Public access

Yes

Listed by Minnesota PCA

Lake Size & Watershed

Watershed (drainage) area

36 sq mi

HydroLAKES / HydroSHEDS

Elevation

1,289 ft

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

Stays via Stay22

Stays near Cass Lake Pike Bay

Compare lakeside cabins, hotels, and vacation rentals near Cass Lake Pike Bay 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 Cass Lake Pike Bay

Prices for Oct 23–25, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a trip? Cabins and lodging at Cass Lake Pike Bay → · more Minnesota lake trips

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Fish Species

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

Fishing Cass Lake Pike Bay

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

zebra mussel

Ice season

Typical ice-out

Apr 25

Earliest Mar 18, 2024 · Latest May 11, 2008

Typical ice-in

Dec 2

Earliest Nov 24, 2007 · Latest Jan 7, 2024

Most recent ice-out

Apr 25

2026

13 observations · Minnesota PCA ice records

Nearby Lakes in Cass County

Frequently asked questions about Cass Lake Pike Bay

Where is Cass Lake Pike Bay?

Cass Lake Pike Bay 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 Cass Lake Pike Bay?

Cass Lake Pike Bay in Cass County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 13.6 ft visibility. Phosphorus: 10.5 µg/L. Chlorophyll-a (algae): 3.4 µg/L. Maximum depth: 95 ft. Surface area: 4756.39 acres.

Measurements on this page ↑

Is Cass Lake Pike Bay safe to swim in?

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

Swimming on this page ↑

What is the water temperature of Cass Lake Pike Bay?

Cass Lake Pike Bay typically sits around 56°F at the surface in October, from 216 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.

Temp on this page ↑

How deep is Cass Lake Pike Bay?

Cass Lake Pike Bay has a maximum depth of 95 feet and an average depth of 25 feet. The lake covers 4756.39 acres.

What fish are in Cass Lake Pike Bay?

Fish species found in Cass Lake Pike Bay include black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, burbot, green sunfish, hybrid sunfish, lake whitefish, largemouth bass, muskellunge, northern pike, pumpkinseed, rock bass, smallmouth bass, tullibee (cisco), walleye, white sucker, yellow bullhead, yellow perch. Cass Lake Pike Bay is located in Cass County, Minnesota.

Fish on this page ↑

When does Cass Lake Pike Bay thaw?

Cass Lake Pike Bay typically has ice-out around Apr 25. Ice typically forms around Dec 2. The open water season is approximately 221 days.

Can I fish at Cass Lake Pike Bay?

Public access to Cass Lake Pike Bay 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.

State Parks Near Cass Lake Pike Bay

Where this data comes from

24 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Leech Lake Band of OjibweLEECHLAK_WQX24 samples · 2025

Analytical methods

  • Phosphorus by Two Reagent Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
  • Nitrate-Nitrite Nitrogen by Colorimetry
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

Ice data from Minnesota DNR Climate