Seventh Crow Wing is located two miles south of Nevis in Hubbard County. Seventh Crow Wing has a surface area of 260.5 acres and a maximum depth of 40 feet. There is currently no public access on the lake; however, there is a county owned access on the outlet (Crow Wing River), west of County Road #13. This is an undeveloped access that is only suitable for small or carry-in boats. Seventh Crow Wing provides fishing opportunities for Walleye, Northern Pike, Largemouth Bass, and Panfish.
The Minnesota Department of Natural Resources (DNR) has classified Minnesota's lakes into 43 different types based on physical and chemical characteristics. Seventh Crow Wing is in lake class 31. Other area lakes in this same classification include: Second, Fifth, Sixth, Seventh, and Eighth Crow Wing lakes, Duck, Hinds, and Lower Twin.
Surveys have shown Seventh Crow Wing to support a good Walleye population in both numbers and size of fish. Walleye abundance (10.8 walleye/gillnet) was similar to recent surveys. Sampled Walleye had an average length and weight of 16.1 inches and 1.50 pounds, with fish measured up to 25.4 inches. Seventh Crow Wing is stocked with Walleye fingerlings during odd numbered years. Yellow Perch, an important forage species for Walleye, were sampled in moderate numbers, within the range typical for this lake class. The Yellow Perch in Seventh Crow Wing are small in size with few fish an acceptable size for angling.
Present and past surveys have shown Seventh Crow Wing is able to support a low to moderate Northern Pike population composed of moderate to quality sized fish. Northern Pike numbers were up from recent surveys, but within the range "typical" for this lake class. Because numbers are low, Seventh Crow Wing is able to produce some large Northern Pike due to the combination of good forage supply of Tullibee (Cisco) and White Sucker and good growth rates.
Seventh Crow Wing supports good populations of Panfish and Largemouth Bass. Anglers will find good numbers of Bluegill and Pumpkinseed in the 6-8 inch size range and Black Crappie in the 9-11 inch range. Largemouth Bass were sampled in moderate numbers when compared with other lakes in the Crow Wing chain. Seventh Crow Wing has good water quality, submerged and emergent vegetation that provides excellent habitat for Largemouth Bass and Panfish.
Other species sampled included moderate numbers of Rock Bass, Bowfin (Dogfish), Yellow Bullhead, Golden Shiner, and Hybrid Sunfish. Brown bullhead and Green Sunfish were sampled in low numbers.
Currently no aquatic invasive species (AIS) have been identified in Seventh Crow Wing. 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.