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LakeQuality

Pine Lake

Crow Wing County, Minnesota324 acresView mapDirections

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

Clarity
10 ft
Typical for Minnesota
Secchi · sampled 2025
Phosphorus
19 µg/L
Typical for Minnesota
Measured by Minnesota PCA
Chlorophyll-a
4.6 µg/L
Typical for Minnesota
Measured by Minnesota PCA
Water temp
~67°F
Typical for Sep · EPA WQP
Max depth
16.9 ft
Bathymetric survey
Area
324 acres
Surface area
  • Mesotrophic
  • 2 aquatic invasives
  • 17 ft max depth
  • Public access

Pine Lake in Crow Wing County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 10 ft visibility. Phosphorus: 19 µg/L. Chlorophyll-a (algae): 4.6 µg/L. Maximum depth: 16.9 ft. Surface area: 323.58 acres.

Minnesota DNR's Standard Survey on August 19, 2019 caught 5.67 northern pike per gill net at Pine Lake. DNR survey details →

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Pine Lake is a 324-acre mesotrophic lake in Crow Wing County, Minnesota with a maximum depth of 17 feet. Overall water quality is declining over recent sampling years. The lake supports 14 documented fish species including black bullhead, black crappie, and bluegill. Public access is available. Compared to the 84 other monitored lakes in Crow Wing County, Pine Lake ranks #40 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-18. Methodology: how these readings are compared.

What Pine Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water10 ft of visibility
  • Fishing14 species recorded

Swimming conditions

Readings only

Low algae

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 Pine 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 Pine Lake

These are the measurements Minnesota PCA publishes for Pine Lake, 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 10 ft. Phosphorus 19 µg/L. Chlorophyll-a 4.6 µg/L. TSI 45.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)10ftMeasured, not scored

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

Total phosphorus19µg/LGood
GoodFairPoor
Chlorophyll-a (algae)4.6µg/LGood
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.45Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Pine Lake

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

Water Temperature

Pine Lake typically sits around 67°F at the surface in September. Summer average is about 74°F. Usually warmest in Jul (about 78°F) and coldest in May (about 63°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
63°
May
70°
Jun
78°
Jul
73°
Aug
67°
Sep
Oct
Nov
Dec

Column height runs from this lake’s coldest month (63°F) to its warmest (78°F).

Typical surface water temperature by month, from 31 field readings (2017–2025) via the EPA Water Quality Portal. See the full Pine Lake water temperature breakdown →

DNR fisheries survey

Minnesota DNR's Standard Survey on August 19, 2019 caught 5.67 northern pike per gill net at Pine Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Pine Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.

DNR Fisheries Survey Summary

6 surveys on file from MN DNR Fisheries. Most recent: 2019-08-19 (Standard Survey).

6 surveys on file · most recent 2019-08-19 (Standard Survey)

SpeciesCatch rate (CPUE)SizeAvg weight
Golden Shiner
14.24
Yellow Perch
12.35
5–8 in
2019-08-19
0.15 lb
Bluegill
5.77
3–8 in
2019-08-19
0.19 lb

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.

Yellow Perch

7 fish · 5–8 in · 2019-08-19
3205678

Bluegill

49 fish · 3–8 in · 2019-08-19
1470345678

From the 2019-08-19 survey

Big Pine Lake is a reservoir of the Pine River just south of Crosslake, MN. The rock dam that created Big Pine Lake built in 1970 that has required frequent costly repairs was replaced in the winter of 2020 with an arched-rock-rapids-style dam that allows for fish passage. This was made possible by a $1.2 million…

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 Pine 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

16.9 ft

Surface area

324 acres

Shoreline

3.7 mi

Littoral zone

100%

Share shallower than 15 ft

Public access

Yes

Listed by Minnesota PCA

Lake Size & Watershed

Watershed (drainage) area

589 sq mi

HydroLAKES / HydroSHEDS

Elevation

1,191 ft

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

Stays via Stay22

Stays near Pine Lake

Compare lakeside cabins, hotels, and vacation rentals near Pine Lake in Crow Wing 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 Pine Lake

Prices for Oct 9–11, 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 whole trip? See where to stay at Minnesota’s top lakes →

Follow Pine Lake’s readings

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Fish Species

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

Fishing Pine Lake

Invasive & Introduced Species

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

Eurasian watermilfoilzebra mussel

Based on 6 years of monitoring (2020–2025).

  • Water clarity

    Worsening

    6 years

  • Phosphorus

    Stable

    -0.16 µg/L/yr6 years

  • Chlorophyll-a

    Worsening

    +0.32 µg/L/yr6 years

See year-by-year chart →

Reservoir Info (USACE NID)

Pine Lake is a man-made reservoir impounded by the Big Pine Lake (completed 1970), built primarily for recreation on the Pine River; rockfill-type dam, 9 ft tall.

Surface area
400 ac
Normal storage
2,000 ac-ft
Max storage
2,000 ac-ft
Drainage area
576 sq mi
Hazard class
Low
Owner
County of Crow Wing and Trail and Lake

Source: USACE National Inventory of Dams, NID ID MN01591 · Operator website

Nearby Lakes in Crow Wing County

Frequently asked questions about Pine Lake

Where is Pine Lake?

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

What is the water quality of Pine Lake?

Pine Lake in Crow Wing County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 10 ft visibility. Phosphorus: 19 µg/L. Chlorophyll-a (algae): 4.6 µg/L. Maximum depth: 16.9 ft. Surface area: 323.58 acres.

Measurements on this page ↑

Is Pine Lake 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 Pine Lake?

Pine Lake typically sits around 67°F at the surface in September, from 31 EPA Water Quality Portal field readings (2017–2025). That is a typical value for the month, not a live reading.

Temp on this page ↑

How deep is Pine Lake?

Pine Lake has a maximum depth of 16.9 feet. The lake covers 323.58 acres.

What fish are in Pine Lake?

Fish species found in Pine Lake include black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, smallmouth bass, walleye, white sucker, yellow bullhead, yellow perch. Pine Lake is located in Crow Wing County, Minnesota.

Fish on this page ↑

What did the DNR fisheries survey find at Pine Lake?

Minnesota DNR's Standard Survey on August 19, 2019 caught 5.67 northern pike per gill net at Pine Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Pine Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

Can I fish at Pine Lake?

Public access to Pine 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.

Where this data comes from

86 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA86 samples · 2020–2025

Analytical methods

  • Field measurement/observation, generic method
  • Phosphorus by Two Reagent Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
  • 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