Minnesota · DNR survey data
Rock Lake
Rock Lake covers 203 acres in Crow Wing County, running to 22 feet, last surveyed by the DNR in 2022. The Minnesota DNR has not published bathymetry for this lake, so there is no depth map here, just the survey record: what the nets held and how big it ran.
DNR survey data
Fish species
Northern pikeOne of the best around17.8per gill net20"Typical37"Biggest
Lengths measured · 116 fish
BluegillJust a few17.6per trap net6"Typical8"Biggest
Lengths measured · 165 fish
CrappieJust a few1.7per trap net7"Typical11"Biggest
Lengths measured · 76 fish
Yellow perchExcellent numbers20per gill net5"Typical7"Biggest
Lengths measured · 121 fish
Rates come from standard DNR survey gear (gill nets, trap nets, electrofishing), judged against statewide benchmarks for the same gear — which is why the same number of fish per net can read differently for two species. Where the standard gear can't count a species reliably, the page shows presence and size only. Typical is the middle fish of those measured. Open a row for the full length spread, survey by survey. You can read every number on this page without an app or an account.
Recent reports
Rock Lake fishing reports
Recent reports on Rock Lake from guides, tournaments and regular anglers. Anything posted in the last two weeks also bumps the matching spots on the live map, so you'll see a "matches a recent report" tag on them.
Public water access
Getting on the water
- Rock Lake (trailer launch)
Within 30 miles
Nearby lakes
- Long Lake · 126 ac · 1.4 mi
- Platte Lake · 1,663 ac · 1.6 mi
- Erskine Lake · 182 ac · 1.9 mi
- Peavy Lake · 141 ac · 3.2 mi
- Sullivan Lake · 1,103 ac · 3.4 mi
- Round Lake · 130 ac · 4 mi
- Whitefish Lake · 709 ac · 4.3 mi
- Camp Lake · 534 ac · 4.3 mi
Quick answers
Frequently asked questions
Is there a depth map for Rock Lake?
The Minnesota DNR has not published bathymetry for Rock Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Rock Lake?
The most recent DNR survey (2022) recorded walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch, rock bass.
Does Rock Lake have a public access?
Yes. Rock Lake has one public access site: Rock Lake (trailer launch).
Is Rock Lake stocked?
No stocking is on record for Rock Lake in the DNR's stocking database.
When was Rock Lake last surveyed?
The Minnesota DNR last surveyed Rock Lake in 2022, the most recent of 2 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .