Red Rock Lake
About Red Rock Lake
Red Rock Lake is a 904-acre lake near Hoffman in Douglas County, Minnesota. It reaches 22 feet at its deepest point, with an average depth of about 9 feet, and has roughly 11.7 miles of shoreline. DNR surveys put average water clarity at about 9.9 feet.
Minnesota DNR fisheries surveys list 13 fish species here, including walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed. The DNR has stocking records for the lake, so check the stocking report for the most recent species and year classes. Special fishing regulations apply to sunfish, and they override the statewide limits. The most recent fisheries survey on file dates to 2025.
There is one public boat launch (concrete surface) managed by the Minnesota DNR. The lake is listed as infested with zebra mussel — clean, drain and dry your boat and gear before leaving. Ice typically goes out around April 7, based on 18 years of DNR ice-out records.
Plan Your Visit to Red Rock Lake
- 904 acres, up to 22 feet deep, near Hoffman
- 1 public boat launch (concrete) — managed by the Minnesota DNR
- Game fish on the DNR survey: walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed
- Special fishing regulations apply here and override the statewide limits
- Average water clarity around 9.9 feet
- Listed as infested with zebra mussel — clean, drain and dry before you leave
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 904 acres
- Max depth
- 22 ft
- Average depth
- 9 ft
- Shoreline
- 11.7 mi
- Water clarity
- 9.9 ft
- Shallows (under 15 ft)
- 520 acres
Rules & Regulations
- A Minnesota fishing license is required for anglers 16 and older
- Drain plugs must be out and all water drained before leaving any access; remove aquatic plants from boats and trailers
- Children under 10 must wear a life jacket on a boat that is underway
Facilities
- 1 public boat launch (concrete)
Best For
- Walleye fishing
- Ice fishing
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Angler's Report
Minnesota DNR LakeFinder- Species on survey
- 13
- Game fish
- 7
- Stocked
- Yes
- Last DNR survey
- 2025
- Special regulations
- Yes
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- Yes
Special regulations on this lake
- Sunfish: Daily limit 10.
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Ice-Out History
- Median ice-out
- April 7
- Years of record
- 18
- Earliest
- March 13, 2024
- Latest
- April 24, 2008
- Most recent
- April 5, 2026
See every lake on the ice-out tracker. Ice-out data: Minnesota DNR State Climatology Office.
Activities
Amenities
Fish Species
Plan your trip to Red Rock Lake
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Nearby Lakes
Lower Elk Lake
47 out of 100 Lake ScoreGrant · Hoffman131 acres
3.4 miles away
Elk Lake
53 out of 100 Lake ScoreGrant · Hoffman207 acres
4.4 miles away
South Oscar Lake
54 out of 100 Lake ScoreDouglas997 acres
5.5 miles away
Thompson Lake
49 out of 100 Lake ScoreGrant · Hoffman154 acres
5.8 miles away
Freeborn Lake
49 out of 100 Lake ScoreDouglas · Farwell248 acres
6.4 miles away
Long Lake
48 out of 100 Lake ScoreDouglas · Evansville202 acres
7 miles away
Frequently Asked Questions
Where is Red Rock Lake?
Red Rock Lake is in Douglas County, Minnesota, near Hoffman. It covers 904 acres and reaches 22 feet deep.
How big and how deep is Red Rock Lake?
Red Rock Lake covers 904 acres with about 11.7 miles of shoreline. Its maximum depth is 22 feet and its average depth is about 9 feet.
What fish can you catch at Red Rock Lake?
Minnesota DNR surveys list Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, and Yellow Perch and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Red Rock Lake?
Yes. Red Rock Lake has 1 public boat launch (concrete), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Red Rock Lake?
There is no mapped public swim beach at Red Rock Lake. Minnesota's public waters are open to swimming where you have legal access, but there are no lifeguards or water-quality monitoring away from designated beaches.
Is Red Rock Lake stocked?
Yes. The Minnesota DNR has stocking records for Red Rock Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.
Are there special fishing regulations on Red Rock Lake?
Yes. Daily limit 10.
When does the ice go out on Red Rock Lake?
The median ice-out date is April 7, from 18 years of Minnesota DNR records. The earliest on record is March 13, 2024 and the latest is April 24, 2008.
Does Red Rock Lake have invasive species?
Yes. The DNR lists Red Rock Lake as infested with zebra mussel. State law requires you to clean off plants, pull the drain plug and drain all water before leaving the access.