Birch Lake is a 364 acre lake located in Washburn County. It has a maximum depth of 73 feet. Visitors have access to the lake from 2 public boat landings. Fish include northern pike, walleye, largemouth bass, smallmouth bass and panfish. According to the DNR, panfish, largemouth bass, northern pike and walleye are common in this lake and smallmouth bass are listed as present.