Updated 26 Oct 2026, 9:42 pm CDT.
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146 lakes · 13,324 acres · 27 with measured depth · 16 with a public access · 10 stocked
Morrison County has 146 lakes of 10 acres or more in Minnesota DNR hydrography, 99 of them named, covering 13,324 acres of water. The largest is Lake Alexander at 2,709 acres; the deepest measured is Cedar Lake at 88 ft. Minnesota DNR has a measured maximum depth for 27 lakes here. The Census counts 28 square miles of water in the county, 2% of its area.
Lake outlines and acres: Minnesota DNR hydrography (lakes, ponds and reservoirs of 10 acres or more, each counted once: a lake mapped in bays as the whole lake, a border water by its Minnesota side; 10 lakes the DNR files under no county are placed here by the Census county line). Depths: Minnesota DNR LakeFinder and lake survey contours, fetched 26 Oct 2026. County line and water area: U.S. Census TIGER. Lake data: Minnesota DNR (General Data and Software License). Not for navigation.
23 lakes in Morrison County cover 100 acres or more. The 12 largest are listed here; the full register of 99 named lakes follows.
| Lake | Nearest town | Acres | Deepest | Clarity | Accesses | Last stocked |
|---|---|---|---|---|---|---|
| Lake Alexander | Randall | 2,709 | 64 ft | 14 ft | 2 | 2025 |
| Shamineau Lake | Motley | 1,434 | 52 ft | 16 ft | 2 | 2025 |
| Fish Trap Lake | Motley | 1,164 | 42 ft | 12 ft | 1 | 2025 |
| Sullivan Lake | Harding | 1,103 | 57 ft | 9 ft | 2 | 2025 |
| Lake Placid | Pillager | 537 | 25 ft | 5 ft | ||
| Skunk Lake | Genola | 370 | ||||
| Rice Lake | Genola | 339 | 8 ft | 2 | ||
| Sylvan Lake | Pillager | 321 | 31 ft | 6 ft | 2025 | |
| Cedar Lake | Upsala | 236 | 88 ft | 17 ft | 1 | 2025 |
| Crookneck Lake | Motley | 191 | 22 ft | 13 ft | 1 | |
| Pierz Lake | Genola | 189 | 34 ft | 11 ft | 1 | 2025 |
| Green Prairie Fish Lake | Randall | 182 | 22 ft | 10 ft | 1 | 2024 |
| Lake | Nearest town | Acres | Deepest | Clarity | Accesses | Last stocked |
|---|---|---|---|---|---|---|
| Lake Alexander | Randall | 2,709 | 64 ft | 14 ft | 2 | 2025 |
| Shamineau Lake | Motley | 1,434 | 52 ft | 16 ft | 2 | 2025 |
| Fish Trap Lake | Motley | 1,164 | 42 ft | 12 ft | 1 | 2025 |
| Sullivan Lake | Harding | 1,103 | 57 ft | 9 ft | 2 | 2025 |
| Lake Placid | Pillager | 537 | 25 ft | 5 ft | ||
| Skunk Lake | Genola | 370 | ||||
| Rice Lake | Genola | 339 | 8 ft | 2 | ||
| Sylvan Lake | Pillager | 321 | 31 ft | 6 ft | 2025 | |
| Cedar Lake | Upsala | 236 | 88 ft | 17 ft | 1 | 2025 |
| Crookneck Lake | Motley | 191 | 22 ft | 13 ft | 1 | |
| Pierz Lake | Genola | 189 | 34 ft | 11 ft | 1 | 2025 |
| Green Prairie Fish Lake | Randall | 182 | 22 ft | 10 ft | 1 | 2024 |
| Pine Lake | Upsala | 178 | 59 ft | 13 ft | 1 | |
| Mud Lake | Pillager | 172 | ||||
| Twelve Lake | Onamia | 145 | ||||
| Peavy Lake | Harding | 140 | 63 ft | 16 ft | 1 | |
| Round Lake | Harding | 130 | 29 ft | 9 ft | 1 | |
| Round Lake | Randall | 127 | 20 ft | 15 ft | 1 | 2022 |
| Long Lake | Harding | 126 | 35 ft | 10 ft | 1 | |
| Stanchfield Lake | Pillager | 116 | 32 ft | 1 | ||
| Long Lake | Upsala | 115 | ||||
| Round Lake | Pillager | 104 | 18 ft | 12 ft | 1 | 2025 |
| Pelkey Lake | Genola | 104 | 7 ft | |||
| Hannah Lake | Harding | 96 | 27 ft | |||
| Mud Lake | Flensburg | 92 | ||||
| Perch Lake | Motley | 87 | ||||
| Lena Lake | Motley | 84 | ||||
| Tamarack Lake | Pillager | 61 | ||||
| Michaels Lake | Fort Ripley | 60 | ||||
| Mud Lake | Fort Ripley | 60 | ||||
| Longs Lake | Randall | 54 | ||||
| Three Finger Lake | Randall | 52 | ||||
| Ferrell Lake | Randall | 51 | ||||
| Mud Lake | Little Falls | 50 | ||||
| Stony Lake | Upsala | 45 | 7 ft | |||
| Goose Lake | Randall | 45 | ||||
| Ham Lake | Motley | 42 | 22 ft | |||
| Lake Alott | Fort Ripley | 41 | 34 ft | |||
| White Bear Lake | Harding | 39 | ||||
| Frieze Lake | Genola | 39 | ||||
| Mud Lake | Sobieski | 35 | ||||
| Ganz Lake | Swanville | 35 | ||||
| Lagerquist Lake | Randall | 32 | 49 ft | |||
| Skunk Lake | Hillman | 31 | ||||
| Tamarack Lake | Upsala | 30 | ||||
| Lake Madaline | Randall | 29 | ||||
| Christmas Lake | Hillman | 29 | ||||
| West Twin Lake | Flensburg | 29 | ||||
| Mud Lake | Harding | 29 | ||||
| Fosdick Lake | Fort Ripley | 29 | 15 ft | |||
| Dunder Pond | Upsala | 28 | ||||
| Long Lake | Fort Ripley | 28 | ||||
| South Twin Lake | Motley | 28 | ||||
| Star Lake | Sobieski | 28 | ||||
| Polander Lake | Swanville | 27 | ||||
| Lake Camile | Randall | 26 | ||||
| O'Donald Lake | Sobieski | 25 | ||||
| Popple Lake | Little Falls | 25 | ||||
| Horseshoe Lake | Upsala | 24 | ||||
| Bass Lake | Upsala | 23 | ||||
| North Twin Lake | Motley | 22 | ||||
| Beauty Lake | Flensburg | 21 | ||||
| Miller Lake | Fort Ripley | 21 | ||||
| Cockburn Lake | Fort Ripley | 20 | 8 ft | |||
| East Twin Lake | Flensburg | 20 | 35 ft | |||
| Sheep Lake | Fort Ripley | 19 | ||||
| Starvation Lake | Harding | 18 | ||||
| Johnson Lake | Randall | 18 | ||||
| Muskrat Lake | Fort Ripley | 18 | ||||
| Pugh Lake | Fort Ripley | 17 | ||||
| Denger Lake | Lastrup | 17 | ||||
| Canton Lake | Randall | 16 | ||||
| Lookout Lake | Fort Ripley | 16 | ||||
| Little Ganz Lake | Swanville | 16 | ||||
| Horseshoe Lake | Harding | 16 | ||||
| Meadow Lake | Randall | 15 | ||||
| Mud Lake | Royalton | 14 | ||||
| Coon Lake | Burtrum | 14 | ||||
| Stud Lake | Little Falls | 14 | ||||
| Mud Lake | Fort Ripley | 14 | ||||
| Millers Lake | Randall | 13 | ||||
| Johnson Lake | Swanville | 13 | ||||
| Corner Lake | Randall | 13 | ||||
| Anderson Lake | Little Falls | 13 | ||||
| Lake Leslie | Randall | 12 | ||||
| Mallard Lake | Fort Ripley | 12 | ||||
| Boomerang Lake | Randall | 12 | ||||
| Muskrat Lake | Fort Ripley | 12 | ||||
| Larson Lake | Flensburg | 12 | ||||
| Bass Lake | Randall | 11 | ||||
| Lake Ericson | Fort Ripley | 11 | ||||
| Brouhaha Lake | Harding | 11 | ||||
| Coon Lake | Buckman | 11 | ||||
| Westman Lake | Randall | 11 | ||||
| Prowect Lake | Flensburg | 11 | ||||
| Bernhart Lake | Pillager | 11 | ||||
| Mud Lake | Randall | 11 | ||||
| Gasconade Lake | Hillman | 10 | ||||
| Bane Pond | Lastrup | 10 |
Acres: Minnesota DNR hydrography. Nearest town: U.S. Census 2024 Gazetteer. Deepest: Minnesota DNR LakeFinder (the survey's maximum depth, else the deepest survey contour). Clarity: average measured Secchi depth, Minnesota Pollution Control Agency and volunteer readings via LakeFinder. Accesses: Minnesota DNR public water access sites. Stocking: Minnesota DNR stocking reports, by year. Fetched 26 Oct 2026.
10 names belong to more than one lake in Morrison County, 29 lakes in all. The most repeated is Mud Lake, with 9. Each lake is listed with its nearest town, the way people search for them.
| Name | Lakes | Which one |
|---|---|---|
| Mud Lake | 9 | near Pillager (172 acres); near Flensburg (92 acres); near Fort Ripley (60 acres); near Little Falls (50 acres); near Sobieski (35 acres); near Harding (29 acres); and 3 more |
| Long Lake | 3 | near Harding (126 acres, 35 ft); near Upsala (115 acres); near Fort Ripley (28 acres) |
| Round Lake | 3 | near Harding (130 acres, 29 ft); near Randall (127 acres, 20 ft); near Pillager (104 acres, 18 ft) |
| Bass Lake | 2 | near Upsala (23 acres); near Randall (11 acres) |
| Coon Lake | 2 | near Burtrum (14 acres); near Buckman (11 acres) |
| Horseshoe Lake | 2 | near Upsala (24 acres); near Harding (16 acres) |
| Johnson Lake | 2 | near Randall (18 acres); near Swanville (13 acres) |
| Muskrat Lake | 2 | near Fort Ripley (18 acres); near Fort Ripley (12 acres) |
Names: USGS GNIS and Minnesota DNR hydrography. Acres: Minnesota DNR hydrography; depth: Minnesota DNR LakeFinder, fetched 26 Oct 2026. Nearest town: U.S. Census 2024 Gazetteer.
6 lakes in Morrison County are 50 ft deep or more by Minnesota DNR survey. Cedar Lake is the deepest at 88 ft, then Lake Alexander (64 ft), Peavy Lake (63 ft) and Pine Lake (59 ft). The other 72 named lakes have no measured depth on record.
Minnesota DNR LakeFinder maximum depths and lake survey contours, fetched 26 Oct 2026.
Clarity is the depth at which a black-and-white Secchi disk disappears from view. 16 lakes in Morrison County have measured readings, 56 in all; the middle lake averages 12 ft. The clearest is Cedar Lake at about 17 ft, then Peavy Lake (16 ft), Shamineau Lake (16 ft) and Round Lake near Randall (15 ft). The least clear is Lake Placid at about 5 ft. Clarity is not a test for bacteria or algae toxins.
Average of measured Secchi readings, Minnesota Pollution Control Agency and volunteers, via Minnesota DNR LakeFinder, fetched 26 Oct 2026.
Minnesota DNR lists 20 public water access sites on 16 lakes in Morrison County; 20 take a boat trailer. The other 83 named lakes have no public access site in the DNR record, so their shores may be private.
| Lake | Site | Run by | Facilities |
|---|---|---|---|
| Lake Alexander | Alexander Lake (W) | DNR Division of Parks and Trails | trailer launch · 2 ramps · concrete ramp · 1 dock · 35 trailer spaces · restroom |
| Lake Alexander | Alexander Lake (E) | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 20 trailer spaces · restroom |
| Shamineau Lake | Shamineau Lake (E) | Scandia Valley Township | trailer launch · 1 ramp · concrete ramp · 1 dock · 8 trailer spaces |
| Shamineau Lake | Shamineau Lake (NW) | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 10 trailer spaces · restroom |
| Fish Trap Lake | Fish Trap Lake | DNR Division of Parks and Trails | trailer launch · 2 ramps · concrete ramp · 1 dock · 24 trailer spaces · restroom |
| Sullivan Lake | Sullivan Lake (W) | Pulaski Township | trailer launch · 1 ramp · gravel ramp · 1 dock · 5 trailer spaces |
| Sullivan Lake | Sullivan Lake (E) | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 10 trailer spaces · restroom |
| Rice Lake | Rice/Skunk Lake | DNR Division of Fish and Wildlife | trailer launch · 1 ramp · gravel ramp · 10 trailer spaces |
| Rice Lake | Platte River, Co Rd 256 | DNR Division of Parks and Trails | trailer launch · 1 ramp · gravel ramp · 5 trailer spaces |
| Cedar Lake | Cedar Lake, Hippe | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 8 trailer spaces · restroom |
| Crookneck Lake | Crookneck Lake | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 5 trailer spaces |
| Pierz Lake | Pierz Lake | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 6 trailer spaces |
| Green Prairie Fish Lake | Green Prairie Fish Lake | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 14 trailer spaces |
| Pine Lake | Pine Lake | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 6 trailer spaces · restroom |
| Peavy Lake | Peavy Lake | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 6 trailer spaces |
| Round Lake near Harding | Round Lake | Morrison County | trailer launch · 1 ramp · natural ramp · 4 trailer spaces |
| Round Lake near Randall | Round Lake | DNR Division of Parks and Trails | trailer launch · 1 ramp · concrete ramp · 1 dock · 10 trailer spaces · restroom |
| Long Lake near Harding | Long Lake | Richardson Township | trailer launch · 1 ramp · natural ramp |
| Stanchfield Lake | Stanchfield Lake | DNR Division of Parks and Trails | trailer launch · 1 ramp · gravel ramp · 3 trailer spaces |
| Round Lake near Pillager | Round Lake | DNR Division of Parks and Trails | trailer launch · 1 ramp · gravel ramp · 2 trailer spaces |
Minnesota DNR public water access sites, fetched 26 Oct 2026. The record has no open or closed status.
Minnesota DNR lake surveys have recorded fish in 19 lakes in Morrison County: walleye in 16, northern pike in 19, largemouth bass in 19 and muskellunge in 4. Minnesota DNR stocking reports list 10 lakes stocked here between 2016 and 2025, 96 stockings in all. Walleye went into 10 lakes. In 2025, the latest year on record, 8 lakes were stocked.
| Game fish | Lakes | Largest lakes where recorded |
|---|---|---|
| Walleye | 16 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Sullivan Lake · Lake Placid and 11 more |
| Northern pike | 19 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Sullivan Lake · Lake Placid and 14 more |
| Muskellunge | 4 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Lake Alott |
| Largemouth bass | 19 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Sullivan Lake · Lake Placid and 14 more |
| Smallmouth bass | 8 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Sullivan Lake · Lake Placid and 3 more |
| Black crappie | 18 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Sullivan Lake · Lake Placid and 13 more |
| Bluegill | 19 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Sullivan Lake · Lake Placid and 14 more |
| Yellow perch | 19 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Sullivan Lake · Lake Placid and 14 more |
| White crappie | 1 | Pierz Lake |
| Rock bass | 10 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Sullivan Lake · Lake Placid and 5 more |
2025: 12 stockings, 5,701,306 fish in 8 lakes.
Species recorded in Minnesota DNR lake surveys (game fish by DNR's own list) and Minnesota DNR stocking reports, which give the year, not the day; via LakeFinder, fetched 26 Oct 2026. How we measure
Minnesota DNR lists at least one invasive species for 7 lakes in Morrison County: zebra mussel in 7, Eurasian watermilfoil in 3 and faucet snail in 2. Moving water, plants or animals between lakes spreads them; DNR's rules apply at every access.
| Species | Lakes | Largest lakes listed |
|---|---|---|
| Zebra mussel | 7 | Lake Alexander · Shamineau Lake · Fish Trap Lake · Lake Placid · Sylvan Lake · Cedar Lake and 1 more |
| Eurasian watermilfoil | 3 | Lake Alexander · Shamineau Lake · Crookneck Lake |
| Faucet snail | 2 | Lake Placid · Sylvan Lake |
Minnesota DNR invasive species designations, as listed in LakeFinder, fetched 26 Oct 2026.
8 lakes here have a page of their own, with a depth map drawn from Minnesota DNR survey contours, the stocking record and the latest fish survey.
Chosen by search demand: Google Keyword Planner, October 2026. How we measure
146 lakes of 10 acres or more, 99 of them named, in Minnesota DNR hydrography. Smaller ponds are not counted.
Lake Alexander, at 2,709 acres.
Cedar Lake, 88 ft at its deepest point by Minnesota DNR survey.
Cedar Lake, with measured Secchi readings averaging about 17 ft.
Minnesota DNR lists public water access sites on Lake Alexander, Shamineau Lake, Fish Trap Lake, Sullivan Lake, Rice Lake, Cedar Lake, Crookneck Lake, Pierz Lake and 8 more.
Minnesota DNR surveys have recorded walleye in 16 lakes here, the largest Lake Alexander, Shamineau Lake, Fish Trap Lake, Sullivan Lake, Lake Placid and Sylvan Lake.
Minnesota DNR lists zebra mussels for 7 named lakes here, the largest Lake Alexander, Shamineau Lake, Fish Trap Lake, Lake Placid, Sylvan Lake and Cedar Lake.