Rock
Cass County, Minnesota — DOW #11032400
24 Surveys
261.01
Acres
17 ft
Max Depth
11
Fish Species
25
Local Guides
DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Rock. Green = above normal range. Red = below normal.
Black Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard trap nets | 24.0 (above normal) | 1.1 – 17.4 | 0.08 lb | 72 |
| 1985-07-22 | Standard gill nets | 85.0 (above normal) | 1.9 – 57.5 | 0.09 lb | 170 |
| 1980-07-16 | Standard gill nets | 74.7 (above normal) | 1.9 – 57.5 | 0.13 lb | 224 |
| 1980-07-16 | Standard trap nets | 25.0 (above normal) | 1.1 – 17.4 | 0.15 lb | 100 |
Brown Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard trap nets | 105.7 (above normal) | 1.5 – 9.8 | 0.22 lb | 317 |
| 1985-07-22 | Standard gill nets | 12.5 (above normal) | 1.5 – 9.9 | 0.12 lb | 25 |
Tadpole Madtom
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard trap nets | 0.7 | — | 0.05 lb | 2 |
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard gill nets | 4.5 (below normal) | 4.6 – 11.6 | 1.44 lb | 9 |
| 1985-07-22 | Standard trap nets | 0.3 | — | 0.20 lb | 1 |
| 1980-07-16 | Standard gill nets | 15.3 (above normal) | 4.6 – 11.6 | 0.47 lb | 46 |
| 1980-07-16 | Standard trap nets | 2.0 | — | 0.97 lb | 8 |
Hybrid Sunfish
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard gill nets | 0.5 | — | 0.10 lb | 1 |
| 1985-07-22 | Standard trap nets | 1.7 | — | 0.30 lb | 5 |
Rock Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard trap nets | 0.3 (normal) | 0.3 – 1.4 | 0.30 lb | 1 |
Walleye
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard gill nets | 11.0 (above normal) | 1.5 – 5.8 | 2.43 lb | 22 |
| 1985-07-22 | Standard trap nets | 0.3 (normal) | 0.3 – 0.8 | 2.00 lb | 1 |
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard gill nets | 1.0 | — | 0.20 lb | 2 |
| 1985-07-22 | Standard trap nets | 15.0 (normal) | 2.5 – 25.0 | 0.14 lb | 45 |
| 1980-07-16 | Standard trap nets | 0.3 (below normal) | 2.5 – 25.0 | 0.20 lb | 1 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard gill nets | 11.5 | — | 0.11 lb | 23 |
| 1985-07-22 | Standard trap nets | 109.3 (above normal) | 1.4 – 8.6 | 0.06 lb | 328 |
| 1980-07-16 | Standard trap nets | 0.5 (below normal) | 1.4 – 8.6 | 0.20 lb | 2 |
Black Crappie
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 1985-07-22 | Standard gill nets | 1.5 (normal) | 1.0 – 7.3 | 0.13 lb | 3 |
| 1985-07-22 | Standard trap nets | 4.0 (normal) | 0.8 – 6.5 | 0.12 lb | 12 |
Depth Maps & Lake Info
Map & Directions
Get DirectionsShowing 14 nearby bait & tackle shops on the map.
Nearby Bait & Tackle
Beimert Outdoors
Brainerd, MN
★ 5Big Nasty Tackle
Cass Lake, MN
★ 3.1Chad Zbasnik Fishing
Walker, MN
Corner Store Depot & Liquor
Brainerd, MN
★ 4.7Dean's Bait, Walker
Walker, MN
★ 4.8Full Stringer Bait and Tackle
Longville, MN
★ 4.8Lakes Area Powersports
Walker, MN
★ 4.6Leech Lake Distributors
Walker, MN
Nearby Marinas
Resorts & Lodges Near Rock
Plan your stay — fishing resorts and lodges near Rock.
Fish Species
Species known to inhabit Rock. Click any species for a full fishing guide.
Fishing Guides Near Rock
Other Lakes in Cass County
Plan Your Trip to Rock
- Weather forecast for Rock — check wind, rain, and temperature before you go
- GPS: 46.4266°N, 94.4746°W — Get Directions
- View on MN DNR LakeFinder for the latest survey data and lake info
- Review Minnesota fishing regulations for season dates and limits
- A Minnesota fishing license is required for ages 16+ — buy online at dnr.state.mn.us
Data sourced from Minnesota DNR Division of Fish and Wildlife. Last verified: March 19, 2026. Learn how we maintain this data.