Rock Lake
About Rock Lake
Rock Lake is a 79-acre lake near Markville in Pine County, Minnesota. It reaches 11 feet at its deepest point, and has roughly 1.4 miles of shoreline. DNR surveys put average water clarity at about 5.6 feet.
Minnesota DNR fisheries surveys list 3 fish species here, including walleye and bluegill. The DNR has stocking records for the lake, so check the stocking report for the most recent species and year classes. The most recent fisheries survey on file dates to 2021.
There is one public boat launch (gravel or earth surface) managed by the Minnesota DNR. Saint Croix State Forest Boulder Campground is mapped close to the shoreline for overnight stays.
Plan Your Visit to Rock Lake
- 79 acres, up to 11 feet deep, near Markville
- 1 public boat launch (gravel or earth) — managed by the Minnesota DNR
- Game fish on the DNR survey: walleye and bluegill
- Average water clarity around 5.6 feet
- Camping close to the water at Saint Croix State Forest Boulder Campground
Access & Fees
- Public access
- 1 public boat launch (gravel or earth)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 79 acres
- Max depth
- 11 ft
- Shoreline
- 1.4 mi
- Water clarity
- 5.6 ft
- Shallows (under 15 ft)
- 79 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 (gravel or earth)
- Camping: Saint Croix State Forest Boulder Campground
Best For
- Lakeside camping
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Angler's Report
Minnesota DNR LakeFinder- Species on survey
- 3
- Game fish
- 2
- Stocked
- Yes
- Last DNR survey
- 2021
- Special regulations
- No
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- Yes
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Camping & Reservations
Saint Croix State Forest Boulder Campground is mapped on or near Rock Lake. Minnesota state park sites are booked through the DNR reservation system, national forest campgrounds through Recreation.gov, and most state forest campgrounds are first-come, first-served.
Campground locations © OpenStreetMap contributors. Confirm details with the operator.
Activities
Amenities
Fish Species
Plan your trip to Rock Lake
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3.1 miles away
Tamarack Lake
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Pickerel Lake
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Oak Lake
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Net Lake
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McCormick Lake
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Frequently Asked Questions
Where is Rock Lake?
Rock Lake is in Pine County, Minnesota, near Markville. It covers 79 acres and reaches 11 feet deep.
How big and how deep is Rock Lake?
Rock Lake covers 79 acres with about 1.4 miles of shoreline. Its maximum depth is 11 feet.
What fish can you catch at Rock Lake?
Minnesota DNR surveys list Walleye and Bluegill. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Rock Lake?
Yes. Rock Lake has 1 public boat launch (gravel or earth), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Rock Lake?
There is no mapped public swim beach at 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 Rock Lake stocked?
Yes. The Minnesota DNR has stocking records for Rock Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.
Can you camp at Rock Lake?
Yes. Saint Croix State Forest Boulder Campground is mapped on or near the shore. Confirm whether sites are reservable or first-come, first-served before you go.