Round Lake
Round Lake in Morrison County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.5 ft visibility. Phosphorus: 21 µg/L. Chlorophyll-a (algae): 3.7 µg/L. Maximum depth: 20 ft. Surface area: 127.08 acres.
- Clarity
- 9.5 ft
- Max depth
- 20 ft
- Area
- 127 acres
- Public access
- Yes
- Ice-out
- Apr 17
- Open water
- 226 days
Next lake in Morrison County
Why Round 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 Round Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, 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.
Round Lake is a 127-acre lake in Morrison County, Minnesota with a maximum depth of 20 feet. The lake supports 9 documented fish species including black crappie, bluegill, and hybrid sunfish. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-06-27. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Round Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Moderate clarity, visible to about 9.5 ft. Phosphorus level: 21 µg/L. Chlorophyll-a: 3.7 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.5 ft | Not graded |
| Phosphorus | 21 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3.7 µg/L | Not graded |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Round Lake
Compare lakeside cabins, hotels, and vacation rentals near Round Lake in Morrison 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 Round Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 20 ft |
| Surface Area | 127 acres |
| Shoreline Length | 1.7 mi |
| Littoral Zone | 75% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Round LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Round Lake
DNR Fisheries Survey Summary
7 surveys on file from MN DNR Fisheries. Most recent: 2019-06-26 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 131.30 | 0.06 lb |
| Black Bullhead | 119.12 | 0.23 lb |
| Largemouth Bass | 24.09 | 0.9 lb |
| Pumpkinseed | 17.18 | 0.11 lb |
| Northern Pike | 6.53 | 1.78 lb |
| Black Crappie | 4.88 | 0.39 lb |
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
Largemouth Bass
Pumpkinseed
Northern Pike
From the 2019-06-26 survey
Round Lake (Camp Ripley) is a 127-acre waterbody located five miles northeast of Randall. A public access is located on the southwestern side of the lake. A small part of the eastern shoreline (about 800 feet) lies within the Camp Ripley Military Base. Water clarity typically measures more than ten feet and there is…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Round Lake. 4 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — RoundFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Round (1922)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — RoundFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — RoundPublic Water Access Sites · MN DNR LakeFinder
Ice Season
Historical ice data from Minnesota DNR (13 observations).
Estimated open water season: 226 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2024-03-09 (2024) | 2022-04-30 (2022) |
| Ice-In | 2007-11-25 (2007) | 2021-12-09 (2021) |
Most recent ice-out: 2024-03-09
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Round Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Randall WwtpRandall · 4.2 mi away · NPDES MN0024562Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Graded lakes near Round Lake
Round Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Morrison County
Frequently asked questions about Round Lake
What is the water quality grade for Round Lake?
- Round Lake in Morrison County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.5 ft visibility. Phosphorus: 21 µg/L. Chlorophyll-a (algae): 3.7 µg/L. Maximum depth: 20 ft. Surface area: 127.08 acres.
Is Round Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Round Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Algae concentration (chlorophyll-a) is 3.7 µg/L. Always check local health department advisories before swimming.
How deep is Round Lake?
- Round Lake has a maximum depth of 20 feet. The lake covers 127.08 acres.
What fish are in Round Lake?
- Fish species found in Round Lake include black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, walleye, white sucker, yellow perch. Round Lake is located in Morrison County, Minnesota.
When does Round Lake thaw?
- Round Lake typically has ice-out around Apr 17. Ice typically forms around Nov 29. The open water season is approximately 226 days.
Are there boat ramps on Round Lake?
- Round Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Round Lake. Public access is listed as yes.
Explore Round Lake across LakeGrade
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Where this data comes from
5 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 Water
MNPCA5 samples · 2022
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- 2130 B ~ Nephelometric Method
- 2120 B ~ Color in Water by Visual Comparison
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
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