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LakeQuality

Roger Lake

NR
Not yet rated
14 ft clear · Oligotrophic · 240 acres
Limited DataOligotrophic

Roger Lake in Crow Wing County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14 ft visibility. Maximum depth: 64 ft. Surface area: 239.99 acres.

Clarity
14 ft
Typical in August
74°F
Max depth
64 ft
Area
240 acres
Trend
Declining
Public access
Yes
Ice-out
Apr 25
Open water
221 days

Next lake in Crow Wing County

CRoss Lake3.5 ft clear · Crow Wing CountyView →
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Why Roger Lake has no grade

We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Roger Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Roger Lake is a 240-acre lake in Crow Wing County, Minnesota with a maximum depth of 64 feet. Overall water quality is declining over recent sampling years. The lake supports 12 documented fish species including black crappie, bluegill, and bowfin (dogfish). Public access is available with 2 public boat landings.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-08-30. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Brainerd

Get alerts for Roger Lake

Water quality measurements for Roger Lake

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Good clarity, visible to about 14 ft. Trophic State Index: 39.

MetricValueGrade
Water Clarity (Secchi Depth)14 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)39Oligotrophic

Low nutrients, clear water, excellent for swimming

Where to stay near Roger Lake

Compare lakeside cabins, hotels, and vacation rentals near Roger 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 Roger Lake

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 →

Water Temperature

Roger Lake typically sits around 74°F at the surface in August. Summer average is about 73°F. Usually warmest in Jul (about 74°F) and coldest in May (about 55°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
55°
Jun
70°
Jul
74°
Aug
74°
Sep
66°
Oct
Nov
Dec

Typical surface water temperature by month, from 16 field readings (20162019) via the EPA Water Quality Portal. See the full Roger Lake water temperature breakdown →

Lake Details

CharacteristicValue
Maximum Depth64 ft
Surface Area240 acres
Shoreline Length2.5 mi
Littoral Zone35%
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
1 sq mi
Elevation
1,224 ft

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

Recreation & Access

2
Boat Landings
Yes
Public Access
  • Roger LakePublic
  • Upper Dean LakePublic

Fish Species

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

Fishing Roger Lake

DNR Fisheries Survey Summary

17 surveys on file from MN DNR Fisheries. Most recent: 2025-08-14 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluntnose Minnow37.95
Bluegill22.710.25 lb
JND15.01
Yellow Bass14.090.5 lb
GOS13.11
BNS10.08

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

237 fish · 39 in · 2025-07-14
96480trophy 103456789

Yellow Bass

311 fish · 513 in · 2025-07-14
1135705678910111213

From the 2025-08-14 survey

Rogers is a 240-acre lake located 30 miles northeast of Brainerd in Crow Wing County. It has a maximum depth of 64 feet, 83 acres of littoral area, and 2.54 miles of shoreline. A near-shore survey was conducted to assess the populations of both game and non-game fish species. A total of 10 sampling stations were…

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 Roger Lake. 3 reports on file.

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

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.214 m/yr5
See year-by-year chart →

Ice Season

Historical ice data from Minnesota DNR (11 observations).

Typical Ice-Out
Apr 25
Typical Ice-In
Dec 2

Estimated open water season: 221 days

EarliestLatest
Ice-Out2012-03-21 (2012)2013-05-12 (2013)
Ice-In2014-11-26 (2014)2015-12-14 (2015)

Most recent ice-out: 2019-04-25

Reservoir Info (USACE NID)

Roger Lake is a man-made reservoir impounded by the Rogers Lake (completed 1938), built primarily for recreation, 8 ft tall and 11 ft long.

Surface area
300 ac
Normal storage
200 ac-ft
Max storage
200 ac-ft
Drainage area
1.75 sq mi
Hazard class
Undetermined
Owner
MNDNR

Source: USACE National Inventory of Dams, NID ID MN01116 · Operator website · Matched by proximity (0.43 km)

EPA Impairment Status

Roger Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

MercuryNutrients (phosphorus, nitrogen)

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN18-0170-00 · Official waterbody report · Matched by proximity (2.82 km)

Graded lakes near Roger Lake

Roger Lake has no grade, but these lakes within a short drive do.

Nearby Lakes in Crow Wing County

Frequently asked questions about Roger Lake

What is the water quality grade for Roger Lake?

Roger Lake in Crow Wing County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14 ft visibility. Maximum depth: 64 ft. Surface area: 239.99 acres.

Is Roger Lake safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Roger Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

What is the water temperature of Roger Lake?

Roger Lake typically sits around 74°F at the surface in August, from 16 EPA Water Quality Portal field readings (2016–2019). That is a typical value for the month, not a live reading.

How deep is Roger Lake?

Roger Lake has a maximum depth of 64 feet. The lake covers 239.99 acres.

What fish are in Roger Lake?

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

When does Roger Lake thaw?

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

Are there boat ramps on Roger Lake?

Roger Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Roger Lake, Upper Dean Lake. Public access is listed as yes.

Oligotrophic Lakes in Minnesota

Where this data comes from

10 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 WaterMNPCA10 samples · 2020–2025

Analytical methods

  • Field measurement/observation, generic method
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database

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