Long Lake
Morrison County, Minnesota, near Sullivan. DNR lake ID 49001500.
Long Lake is a 125.5-acre lake in Morrison County, Minnesota, near Sullivan. Its deepest point reaches 35 ft, and about 50% of the lake is shallower than 15 feet. Summer water clarity averages 10.9 feet in Minnesota Pollution Control Agency monitoring. It is not on the DNR infested waters list as of September 2026. DNR surveys document walleye, northern pike, largemouth bass, black crappie, bluegill, yellow perch.
Buying or selling on Long Lake? Ask us what lakeshore here actually sells for, which stretches of shoreline buyers compete for, and what’s coming up before it’s listed.
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Quick facts
| DNR lake ID | 49001500 |
|---|---|
| County | Morrison County, near Sullivan |
| Surface area | 125.5 acres |
| Maximum depth | 35 ft |
| Share under 15 ft | 50% |
| Water clarity (summer) | 10.9 ft through 2025 (satellite estimate) |
| Invasive species | Not on DNR infested waters list (Sept 2026) |
| Public water accesses | 1 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2025: clarity 10.9 ft.
Fishing on Long Lake
The most recent DNR standard fish survey was in 2017 (9 years ago). Catch per net is compared with the DNR’s typical range for lakes of the same type.
| Species | Net | Catch per net | Typical range |
|---|---|---|---|
| Walleye | gill | 0.5 | 0.5 to 3.0 |
| Northern pike | gill | 3.0 | 4.8 to 12.5 |
| Yellow perch | gill | 2.83 | 2.0 to 21.5 |
| Black crappie | gill | 4.0 | 1.0 to 4.8 |
| Bluegill | gill | 0.83 | n/a |
| Largemouth bass | gill | 0.83 | 0.3 to 1.8 |
Walleye catch was within the typical range for similar lakes in that survey.
Largest fish measured in recent DNR samples: Smallmouth bass 17.0 in (1994), Largemouth bass 15.0 in (2017), Northern pike 33.0 in (2017), Walleye 27.0 in (2017).
Game and panfish documented since 2005: Walleye, Northern pike, Largemouth bass, Black crappie, Bluegill, Yellow perch, Pumpkinseed, Hybrid sunfish, Green sunfish, Bowfin, Yellow bullhead, Brown bullhead, Black bullhead.
Fishing regulations
No lake-specific regulation found in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Regulations change. Confirm with the DNR before fishing.
Invasive species
Not on the Minnesota DNR infested waters list as of September 2026. That means no confirmed listing, not a guarantee the lake is free of invasive species.
Public boat access
- Long Lake: 1 natural launch ramp. 0.5 miles north of Sullivan on Eastern Lake Road, on Long Lake. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- Bulldog Lake 1.2 mi, Crow Wing County
- Hannah Lake 1.2 mi, Morrison County
- Rock Lake 1.3 mi, Crow Wing County
- Platte Lake 1.7 mi, Crow Wing County
- Peavy Lake 1.9 mi, Morrison County
- Sullivan Lake 2.8 mi, Morrison County
- Twenty Two Lake 3.2 mi, Crow Wing County
- Erskine Lake 3.2 mi, Crow Wing County
Questions about Long Lake
How deep is Long Lake?
Long Lake reaches a maximum depth of 35 ft according to Minnesota DNR records. About 50% of the lake is shallower than 15 feet.
How big is Long Lake?
Long Lake covers about 125.5 acres in Morrison County, Minnesota.
How clear is Long Lake?
Summer water clarity on Long Lake averages 10.9 feet (Secchi depth) in MPCA monitoring through 2025.
Does Long Lake have zebra mussels or other invasive species?
Long Lake is not on the Minnesota DNR infested waters list as of September 2026. That means there is no confirmed listing; it is not a guarantee the lake is free of invasive species.
What fish are in Long Lake?
Minnesota DNR surveys document walleye, northern pike, largemouth bass, black crappie, bluegill, yellow perch, pumpkinseed, hybrid sunfish, green sunfish, bowfin in Long Lake. The most recent standard survey was in 2017.
Where is the public boat access on Long Lake?
Long Lake has 1 public water access site on DNR record: Long Lake.
How is the walleye population on Long Lake?
In Minnesota DNR net surveys from 1994 to 2017, walleye numbers on Long Lake ran mostly within the typical range for similar lakes. Nets measure how many fish a lake holds, not where they’re biting, so local guides are the best source for current fishing.
Are there lake homes for sale on Long Lake?
Homes on Long Lake come up for sale throughout the year, and some sell before they’re ever publicly advertised. Tell us what you’re looking for and our agents will run a custom search and send you matching homes on Long Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Long Lake?
Small, quiet water suited to paddling and fishing, about 50% shallow shoreline under 15 feet, and summer clarity around 10.9 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Long Lake?
No lake-specific regulation was found for Long Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Long Lake
Whether you’re buying, selling, or just curious, our team works Morrison County lakes every day. Send us a note or call (218) 656-6469.
Sources: Minnesota DNR LakeFinder records, DNR fish surveys (latest 2017), DNR infested waters list (Sept 2026), Minnesota Rules 6264.0400 (April 2026), MPCA monitoring via the Water Quality Portal, DNR water access records (2023), LAGOS-US. Lakewide information from public data; it does not describe any specific property. Verify shoreline, bottom type, and depth at any frontage.