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LakeQuality

Rachel Lake

Douglas County, Minnesota448 acresView mapDirections

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

Clarity
7.9 ft
Typical for Minnesota
Secchi · sampled 2025
Phosphorus
22.5 µg/L
Typical for Minnesota
Measured by Minnesota PCA
Chlorophyll-a
3.9 µg/L
Typical for Minnesota
Measured by Minnesota PCA
Water temp
~69°F
Typical for Sep · EPA WQP
Max depth
65 ft
Bathymetric survey
Area
448 acres
Surface area
  • Mesotrophic
  • 65 ft max depth
  • Public access

Rachel Lake in Douglas County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 7.9 ft visibility. Phosphorus: 22.5 µg/L. Chlorophyll-a (algae): 3.9 µg/L. Maximum depth: 65 ft. Surface area: 448.16 acres.

Minnesota DNR's Standard Survey on July 1, 2024 caught 2.11 walleye per gill net at Rachel Lake. DNR survey details →

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Rachel Lake is a 448-acre mesotrophic lake in Douglas County, Minnesota with a maximum depth of 65 feet (30-foot average). 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 with 1 public boat landing. Compared to the 36 other monitored lakes in Douglas County, Rachel Lake ranks #14 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-22. Methodology: how these readings are compared.

Rachel Lake covers about 450 acres in Douglas County. It has one public boat landing. The median ice-out date is April 11, which is when the open-water season begins. Vrbo is where to look for cabins and lake homes around Rachel Lake, and Booking.com and Expedia search hotels near the lake for your dates.

What Rachel Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp
  • Fishing14 species recorded
  • Ice seasonIce-out around Apr 11
  • Deep water65 ft surveyed max depth

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 Rachel 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.

Compare swimming lakes near Alexandria →

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Water quality measurements for Rachel Lake

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

Moderate clarity, visible to about 7.9 ft. Phosphorus 22.5 µg/L. Chlorophyll-a 3.9 µg/L. TSI 47.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)7.9ftMeasured, not scored

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

Total phosphorus22.5µg/LGood
GoodFairPoor
Chlorophyll-a (algae)3.9µg/LGood
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.47Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Rachel Lake

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

Water Temperature

Rachel Lake typically sits around 69°F at the surface in September. Summer average is about 71°F. Usually warmest in Aug (about 74°F) and coldest in Jul (about 67°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
Jun
67°
Jul
74°
Aug
69°
Sep
Oct
Nov
Dec

Column height runs from this lake’s coldest month (67°F) to its warmest (74°F).

Typical surface water temperature by month, from 25 field readings (2011–2024) via the EPA Water Quality Portal. See the full Rachel Lake water temperature breakdown →

DNR fisheries survey

Minnesota DNR's Standard Survey on July 1, 2024 caught 2.11 walleye per gill net at Rachel Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Rachel 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

13 surveys on file from MN DNR Fisheries. Most recent: 2024-07-01 (Standard Survey).

13 surveys on file · most recent 2024-07-01 (Standard Survey)

SpeciesCatch rate (CPUE)SizeAvg weight
Bluegill
41.50
2–8 in
2024-07-01
0.16 lb
Bluntnose Minnow
18.74
Black Bullhead
15.67
13–15 in
2018-06-25
0.88 lb
Largemouth Bass
15.63
4–19 in
2024-07-01
0.98 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.

Bluegill

412 fish · 2–8 in · 2024-07-01
1336702345678

Black Bullhead

4 fish · 13–15 in · 2018-06-25
210131415

Largemouth Bass

37 fish · 4–19 in · 2024-07-01
1160trophy 20″4681012141618

From the 2024-07-01 survey

Rachel Lake is a 496 acre natural basin located in south central Douglas County near Holmes City. Maximum depth is 65 feet. Water quality and clarity are typically very good, although significant annual variability is noted. Rachel Lake supports a robust aquatic plant community. Habitat attributes are typical of a…

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 Rachel Lake. 4 reports on file.

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

Lake Details

Max depth

65 ft

Average depth

30 ft

Surface area

448 acres

Shoreline

6.3 mi

Littoral zone

49%

Share shallower than 15 ft

Public access

Yes

Listed by Minnesota PCA

Lake Size & Watershed

Watershed (drainage) area

47 sq mi

HydroLAKES / HydroSHEDS

Elevation

1,362 ft

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

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Rachel LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Rachel Lake

Compare lakeside cabins, hotels, and vacation rentals near Rachel Lake in Douglas 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 Rachel 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 →

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Fish Species

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

Fishing Rachel Lake

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

  • Water clarity

    Worsening

    6 years

  • Phosphorus

    Worsening

    +1.17 µg/L/yr6 years

  • Chlorophyll-a

    Worsening

    +1.17 µg/L/yr6 years

See year-by-year chart →

Ice season

Typical ice-out

Apr 11

Earliest Mar 18, 2012 · Latest May 11, 2013

Most recent ice-out

Apr 3

2017

9 observations · Minnesota PCA ice records

Nearby Lakes in Douglas County

Frequently asked questions about Rachel Lake

Where is Rachel Lake?

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

What is the water quality of Rachel Lake?

Rachel Lake in Douglas County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 7.9 ft visibility. Phosphorus: 22.5 µg/L. Chlorophyll-a (algae): 3.9 µg/L. Maximum depth: 65 ft. Surface area: 448.16 acres.

Measurements on this page ↑

Is Rachel 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 Rachel Lake?

Rachel Lake typically sits around 69°F at the surface in September, from 25 EPA Water Quality Portal field readings (2011–2024). That is a typical value for the month, not a live reading.

Temp on this page ↑

How deep is Rachel Lake?

Rachel Lake has a maximum depth of 65 feet and an average depth of 30 feet. The lake covers 448.16 acres.

What fish are in Rachel Lake?

Fish species found in Rachel Lake include black bullhead, black crappie, bluegill, brown bullhead, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, tullibee (cisco), walleye, white sucker, yellow bullhead, yellow perch. Rachel Lake is located in Douglas County, Minnesota.

Fish on this page ↑

What did the DNR fisheries survey find at Rachel Lake?

Minnesota DNR's Standard Survey on July 1, 2024 caught 2.11 walleye per gill net at Rachel Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Rachel 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 ↑

When does Rachel Lake thaw?

Rachel Lake typically has ice-out around Apr 11.

Are there boat ramps on Rachel Lake?

Rachel Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Rachel Lake. Public access is listed as yes.

Access on this page ↑

Can I fish at Rachel Lake?

Rachel Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. 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.

Access on this page ↑

Where this data comes from

80 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 WaterMNPCA80 samples · 2020–2025

Analytical methods

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

Named boat-access points from the USGS National Boat Ramps inventory

Ice data from Minnesota DNR Climate