Long

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.

Long Lake (DOW# 11-0454; Lake Class 32) is a 142 acre lake located near Backus, MN. A county owned public access on the southeast shore. Long Lake has 3.40 miles of shoreline and a maximum depth of 48 feet. The DNR 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 irregularly shaped with a high percentage of water 15 feet and shallower. Long Lake has a simple fish community with four main species. It has a low density Northern Pike population but pike tend to be shorter than 24 inches. The Walleye population is abundant compared to similar lakes, however anglers shouldn't expect great numbers of Walleye. Walleye up to 20 inches were found during the 2015 assessment, and Largemouth Bass up to 19 inches were sampled. Long Lake has an abundant Rock Bass population with Rock Bass up to 12 inches. Other fish species that anglers can expect to encounter include Green Sunfish, and Pumpkinseed Sunfish 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.

Long Lake, also known as Lost Rocky, has an area of 125 acres and a shoreline length of 3.0 miles. There is a county-owned public access located on the southeast corner of the lake. The lake is primarily managed for northern pike and largemouth bass, and secondarily for walleye. The Minnesota Department of Natural Resources (MN DNR) has classified Minnesota's lakes into 43 different lake classes based on physical, chemical and other characteristics. Long Lake is in Lake Class 32. Lakes in this class are generally shallow and have an irregular shoreline. Much of the shoreline of Long Lake is publicly owned and no homes are present on the lake. The northern pike in Long Lake are in low to moderate abundance. The average size of northern pike sampled in 2001 was 15.9 inches, with the largest pike sampled measuring 22.4 inches. Largemouth bass are present in numbers similar to other lakes in this lake class. Sampled largemouth bass were small, averaging 8.6 inches, ranging from 5.1 inches to 12.6 inches. Walleye catch rates have increased through time with the current abundance the highest on record and above levels of other lake class 32 lakes. The average length of sampled walleye was 17.4 inches, ranging from 9.7 inches to 27.6 inches. Eight year classes were sampled and indicate consistent natural reproduction as Long Lake is not stocked. Other species sampled in low abundance include yellow perch, pumpkinseed, and white sucker. Rock bass are abundant. Although normally present in this type of lake, no bullhead or crappie was sampled. This may be due to low abundance or simply the lack of their presence. Anglers can negatively impact the size structure of game-fish populations by harvesting large fish. This may be the case on Long Lake as no large northern pike or largemouth bass were sampled in 2001. By practicing catch and release or selectively harvesting smaller fish and releasing larger ones, anglers can help increase the abundance of these highly desired larger fish. Such efforts certainly will be rewarded not only in the future but also at the moment of release when the angler provides another with the opportunity to catch the fish again.

Based on Minnesota DNR survey data, anglers target Rock Bass, Walleye, Largemouth Bass, Hybrid Sunfish, and Pumpkinseed in Long. See the full species list above for catch rates, size structure, and quality scores.

Minnesota DNR records list public access for Long. Check the DNR LakeFinder page for the launch type and directions before you go.

Long has a maximum depth of 48 feet, per Minnesota DNR data.

The most recent Minnesota DNR survey data for the main sport fish in Long is from 2025.

No invasive species are on record for Long in Minnesota DNR data. Always clean, drain, and dry your equipment to help keep it that way.