Long Lake (Cass County, DOW 11045400)
Cass County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 11045400
Long Lake (Cass County, DOW 11045400) has no DNR stocking rows in LakeFinder; this page carries its DNR depth, access and survey data.
- Long Lake (Cass County, DOW 11045400) shows no stocking records in Minnesota DNR LakeFinder as of .
- Maximum depth 48 ft; surface area 142 acres, 77 littoral acres, 3.4 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 16.3 ft.
- Fish species DNR lists here: green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, walleye, white sucker, yellow perch.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (standard survey).
- Cass County, nearest town Backus; DNR lake number (DOW) 11045400.
Depth map
Bathymetric contours from the Minnesota DNR lake survey; depths in feet. Simplified for the web; not for navigation.
Public accesses
| Type | Owner | Where |
|---|---|---|
| concrete ramp | county | County owned and developed public access located on the SSE shore. - COUNTY OWNED AND DEVELOPED PUBLIC ACCESS LOCATED ON THE SOUTHEAST CORNER OF LONG LAKE |
DNR fish survey, 2025
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Rock bass | Standard gill nets | 18.50 | 111 | 0.67 |
| Largemouth bass | Standard gill nets | 7.50 | 45 | 1.11 |
| Walleye | Standard gill nets | 3.83 | 23 | 0.96 |
| Yellow perch | Standard gill nets | 3.67 | 22 | 0.09 |
| Northern pike | Standard gill nets | 3.17 | 19 | 1.29 |
| Hybrid sunfish | Standard gill nets | 2.17 | 13 | 0.44 |
| Pumpkinseed | Standard gill nets | 0.33 | 2 | 0.50 |
| White sucker | Standard gill nets | 0.17 | 1 | 4.35 |
| Rock bass | Standard trap nets | 4.22 | 38 | 0.41 |
| Largemouth bass | Standard trap nets | 2.11 | 19 | 0.46 |
| Hybrid sunfish | Standard trap nets | 1.33 | 12 | 0.26 |
| Northern pike | Standard trap nets | 0.56 | 5 | 0.93 |
| Pumpkinseed | Standard trap nets | 0.33 | 3 | 0.15 |
| Green sunfish | Standard trap nets | 0.22 | 2 | 0.06 |
| Walleye | Standard trap nets | 0.22 | 2 | 2.61 |
Catch per net (CPUE) is the DNR survey's count per gill net or trap net set; higher means more of that species were sampled, not a fishing forecast. Top species per gear shown; where we have no verified common name for a DNR code, the code itself is shown.
Long Lake (Lost Rocky) (DOW# 11-0454; Lake Class 32) is a 142 acre lake with 77 littoral acres, 3.4 miles of shoreline, and a maximum depth of 48 feet located near Backus, MN. A county owned public access is located on the southeast shore. Anglers should be advised that the access road is minimally maintained and would require a four wheel drive high clearance vehicle to navigate safely. The Minnesota Department of Natural Resources has classified Minnesota's lakes into 43 different classes based on physical, chemical and other characteristics. Long Lake is in Lake Class 32; lakes in this class are characterized as irregularly shaped with a high percentage of water 15 feet and shallower. Other area lakes in this class include, Island, Moccasin and Long (Pinecrest) Lakes. The lake is primarily managed for Largemouth Bass and Northern Pike and secondarily for Walleye. Long Lake is a great multi-species lake with potential to produce trophy size fish. Largemouth Bass were abundant, ranging in length from 6 to 16 inches. Management goals for Largemouth Bass are based on spring electrofishing which was not conducted in 2025. Northern Pike abundance was low but met the management goal and ranged in length from 14 to 22 inches. Northern Pike size goals were not met in 2025. Walleye abundance was moderate and met the management goal with fish ranging in length from 11 to 19 inches. The Walleye population in this lake is sustained by natural reproduction. Long Lake has an abundant population of large Rock Bass for anglers seeking this species with fish up to 12 inches. Other fish species sampled include Green Sunfish, Hybrid Sunfish, Pumpkinseed, White Sucker and Yellow Perch. People can have significant impacts on lakes and the fish populations they support. Harvest, lakeshore development, removal of shoreline vegetation, and introductions of invasive species can all adversely affect fish populations. No aquatic invasive species (AIS) have been identified in Long Lake. AIS are moved from infested to non-infested waters by anglers, boaters, and lake shore owners and can adversely impact lakes and fish populations. To avoid spreading AIS, lake users are required to remove all aquatic plants or animals from their watercraft and drain all water from their boat before leaving the access. If you suspect an infestation of an invasive species in this lake, save a specimen and report it to a local natural resource office. Additional information on all of these topics can be found on the DNR website (www.dnr.state.mn.us) or by contacting the Walker Area Fisheries office.
Minnesota DNR survey narrative, .
All Minnesota stockings · every Minnesota lake with a page · state CSV · this lake on DNR LakeFinder
Stocking rows, depths, accesses and survey figures are Minnesota DNR LakeFinder data as of 2026-09-02; contours are the DNR bathymetric survey. Regulations, slot limits and special rules are on the DNR page linked above, not here.
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