Sullivan Lake
Morrison County, Minnesota, near Harding. DNR lake ID 49001600.
Sullivan Lake is a 1,103-acre lake in Morrison County, Minnesota, near Harding. Its deepest point reaches 57 ft, and about 51% of the lake is shallower than 15 feet. Summer water clarity averages 10.4 feet in Minnesota Pollution Control Agency monitoring, which places it in the mesotrophic nutrient class. It is not on the DNR infested waters list as of September 2026. DNR surveys document walleye, northern pike, largemouth bass, smallmouth bass, black crappie, bluegill.
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Quick facts
| DNR lake ID | 49001600 |
|---|---|
| County | Morrison County, near Harding |
| Surface area | 1,103 acres |
| Maximum depth | 57 ft |
| Mean depth | 17.6 ft |
| Share under 15 ft | 51% |
| Water clarity (summer) | 10.4 ft through 2024 |
| Phosphorus (summer) | 17.3 µg/L |
| Algae, chlorophyll-a (summer) | 5.7 µg/L |
| Nutrient class | Mesotrophic |
| Clarity trend | Clearer (2016 to 2024) |
| Invasive species | Not on DNR infested waters list (Sept 2026) |
| Public water accesses | 2 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2024: clarity 10.4 ft, phosphorus 17.3 µg/L, algae (chlorophyll-a) 5.7 µg/L. Using the Carlson trophic state index, Sullivan Lake rates as mesotrophic. Summer clarity trend 2016 to 2024: clearer.
Fishing on Sullivan Lake
The most recent DNR standard fish survey was in 2021 (5 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 | 4.75 | 3.3 to 8.8 |
| Northern pike | gill | 4.58 | 2.8 to 9.0 |
| Yellow perch | gill | 4.5 | 7.0 to 46.3 |
| Black crappie | gill | 2.5 | 0.4 to 2.7 |
| Bluegill | gill | 1.5 | n/a |
| Largemouth bass | gill | 0.5 | 0.3 to 1.4 |
| Tullibee (cisco) | gill | 1.25 | 0.8 to 6.2 |
| Pumpkinseed | gill | 0.58 | n/a |
| Rock bass | gill | 1.42 | 0.6 to 3.9 |
Walleye catch was within the typical range for similar lakes in that survey.
Largest fish measured in recent DNR samples: Northern pike 33.0 in (2021), Walleye 13.0 in (2022), Largemouth bass 19.0 in (2021).
Game and panfish documented since 2005: Walleye, Northern pike, Largemouth bass, Smallmouth bass, Black crappie, Bluegill, Yellow perch, Pumpkinseed, Hybrid sunfish, Rock bass, Green sunfish, Tullibee (cisco), Bowfin, Common carp, White sucker, 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
- Sullivan Lake (E): 1 concrete slab launch ramp, 1 dock, 10 trailer spaces. 1 mile West of Richardson's Corners on Morrison Co. Rd. #51, then 0.25 mile South on Morrison Co. Rd. #272, then 0.5 mile West on Robin Road. Directions
- Sullivan Lake (W): 1 gravel launch ramp, 1 dock, 5 trailer spaces. 3 miles east of Harding, 0.5 miles east of CSAH 51, on the west shore of Sullivan Lake. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- Round Lake 1.7 mi, Morrison County
- Platte Lake 2.0 mi, Crow Wing County
- Long Lake 2.8 mi, Morrison County
- Peavy Lake 3.1 mi, Morrison County
- Rock Lake 3.3 mi, Crow Wing County
- Bulldog Lake 3.8 mi, Crow Wing County
- Hannah Lake 4.0 mi, Morrison County
- Erskine Lake 4.9 mi, Crow Wing County
Questions about Sullivan Lake
How deep is Sullivan Lake?
Sullivan Lake reaches a maximum depth of 57 ft according to Minnesota DNR records. About 51% of the lake is shallower than 15 feet.
How big is Sullivan Lake?
Sullivan Lake covers about 1,103 acres in Morrison County, Minnesota.
How clear is Sullivan Lake?
Summer water clarity on Sullivan Lake averages 10.4 feet (Secchi depth) in MPCA monitoring through 2024. Its trophic state is mesotrophic.
Does Sullivan Lake have zebra mussels or other invasive species?
Sullivan 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 Sullivan Lake?
Minnesota DNR surveys document walleye, northern pike, largemouth bass, smallmouth bass, black crappie, bluegill, yellow perch, pumpkinseed, hybrid sunfish, rock bass in Sullivan Lake. The most recent standard survey was in 2021.
Where is the public boat access on Sullivan Lake?
Sullivan Lake has 2 public water access sites on DNR record: Sullivan Lake (E); Sullivan Lake (W).
How is the walleye population on Sullivan Lake?
In Minnesota DNR net surveys from 1993 to 2021, walleye numbers on Sullivan 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 Sullivan Lake?
Homes on Sullivan 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 Sullivan Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Sullivan Lake?
A mid-size lake with room for boating and fishing, about 51% shallow shoreline under 15 feet, and summer clarity around 10.4 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Sullivan Lake?
No lake-specific regulation was found for Sullivan Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Sullivan 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 2021), 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.