Morrison County Lake Quality
Minnesota, 52 lakes, measured by Minnesota PCA
Morrison County has 52 monitored lakes, enough that within-county variation matters as much as the county average. Some are deep glacial basins, others are shallow agricultural-watershed waters, and the measurements reflect that mix. 8 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. On average, Morrison County lakes carry some of the lowest phosphorus and chlorophyll-a readings in Minnesota, with clear summer transparency across most monitored basins.
The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Sullivan Lake.
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Quick Answers for Morrison County
Planning a trip? Check special fishing regulations for Sullivan Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Minnesota regulations index.
Fishing in Morrison County
DNR Reports (40)
Minnesota DNR LakeFinder resources for lakes in Morrison County. browse all reports →
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — SullivanFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — ShamineauFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — RoundFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — RiceFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — PineFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — PierzFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — PeavyFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — Green Prairie FishFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — Fish TrapFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — CrookneckFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — CedarFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — AlottFisheries Lake Survey · MN DNR LakeFinder
- —Fisheries Lake Survey — AlexanderFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Alexander (1917)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — AlexanderFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — AlexanderPublic Water Access Sites · MN DNR LakeFinder
- —Aquatic Plant Report — Cedar (1924)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — CedarFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — CedarPublic Water Access Sites · MN DNR LakeFinder
- —Aquatic Plant Report — Crookneck (1915)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — CrookneckPublic Water Access Sites · MN DNR LakeFinder
- —Aquatic Plant Report — Fish Trap (1916)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — Fish TrapFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — Fish TrapPublic Water Access Sites · MN DNR LakeFinder
- —Aquatic Plant Report — Green Prairie Fish (1923)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — Green Prairie FishFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — Green Prairie FishPublic Water Access Sites · MN DNR LakeFinder
- —Aquatic Plant Report — Peavy (1928)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — PeavyPublic Water Access Sites · MN DNR LakeFinder
- —Aquatic Plant Report — Pierz (1929)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — PierzFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — PierzPublic Water Access Sites · MN DNR LakeFinder
- —Aquatic Plant Report — Pine (1925)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — PinePublic Water Access Sites · MN DNR LakeFinder
- —Aquatic Plant Report — Rice (1930)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — RicePublic Water Access Sites · 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
- —Aquatic Plant Report — Shamineau (1914)Aquatic Plant Report · MN DNR LakeFinder
All Lakes in Morrison County
52 lakes · 8 ranked on readings, 44 without enough sampling8 lakes ranked on readings · 44 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|
| 1 | Sullivan LakeMorrison | 10.8 ft | 14 µg/L | 5 µg/L | No recent samples | 57 ft | ✓ Public |
| 2 | Cedar LakeMorrison | 16.2 ft | 10.5 µg/L | 1.7 µg/L | No recent samples | 88 ft | ✓ Public |
| 3 | Alexander LakeMorrison | 16.5 ft | 16 µg/L | 2.7 µg/L | No recent samples | 64 ft | ✓ Public |
| 4 | Shamineau LakeMorrison | 12.5 ft | 14 µg/L | 4 µg/L | No recent samples | 52 ft | ✓ Public |
| 5 | Pine LakeMorrison | 15.1 ft | 14 µg/L | 3.6 µg/L | No recent samples | 59 ft | ✓ Public |
| 6 | Fish Trap LakeMorrison | 9.7 ft | 22 µg/L | 7 µg/L | No recent samples | 42 ft | ✓ Public |
| 7 | Pierz LakeMorrison | 9.5 ft | 18 µg/L | 5.6 µg/L | No recent samples | 34 ft | ✓ Public |
| 8 | Crookneck LakeMorrison | 11.2 ft | 22 µg/L | 8.2 µg/L | No recent samples | 22 ft | ✓ Public |
| Round LakeMorrison | 9.5 ft | 21 µg/L | 3.7 µg/L | No recent samples | 20 ft | ✓ Public | |
| Unnamed LakeMorrison | 6.9 ft | No recent samples | 6.2 µg/L | No recent samples | No recent samples | ✓ Public | |
| Rice LakeMorrison | 2 ft | No recent samples | No recent samples | No recent samples | 8 ft | ✓ Public | |
| Green Prairie Fish LakeMorrison | 8 ft | No recent samples | No recent samples | No recent samples | 22 ft | ✓ Public | |
| Ferrell LakeMorrison | 9.8 ft | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Fosdick LakeMorrison | 8.9 ft | No recent samples | 7.1 µg/L | No recent samples | No recent samples | Carry-in | |
| Alott LakeMorrison | 10.2 ft | No recent samples | 6.2 µg/L | No recent samples | 34 ft | Carry-in | |
| Peavy LakeMorrison | 13.6 ft | 8 µg/L | No recent samples | No recent samples | 63 ft | ✓ Public | |
| Twelve LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | 9.8 ft | Not recorded | |
| Hannah LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Long LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | 35 ft | ✓ Public | |
| White Bear LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Skunk LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Round LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | 29 ft | ✓ Public | |
| Mud LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Long LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | 19.7 ft | Not recorded | |
| Coon LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Ganz LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Stony LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | 8 ft | Not recorded | |
| Dunder PondMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Mud LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Frieze LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Pelkey LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | 6.6 ft | Not recorded | |
| Mud LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Twin LakesMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Mud LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Mud LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Long LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Goose LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Three Finger LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lake CamileMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lagerquist LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Mud LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| Longs LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lake MadalineMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Ham LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | 23 ft | Not recorded | |
| South Twin LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Perch LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| North Twin LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lena LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Round LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | 18 ft | ✓ Public | |
| Stanchfield LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| Tamarack LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Mud LakeMorrison | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the Minnesota Pollution Control Agency and the Minnesota DNR. See data sources.