Black Oak Lake is a 564 acre lake located in Vilas County. It has a maximum depth of 85 feet. Visitors have access to the lake from a public boat landing. Fish include trout, walleye, northern pike, largemouth bass, smallmouth bass and panfish. According to the Wisconsin DNR, panfish are abundant in this lake. Largemouth bass, smallmouth bass and northern pike are common in the lake. Trout and walleye are listed as present. The lake’s water clarity is very clear.