Birch Lake is located in the eastern portion of Osage County in Barnsdall. Visitors to this area will find 1,137 lake acres, RV and tent camping, picnic areas, swimming, playground, showers and a group shelter. Hunting opportunities are good with principal species of bobwhite quail, mourning dove, fox squirrel, gray squirrel, cottontail rabbit and deer. A fish habitat program has been established at the lake and available species include spotted bass, largemouth bass, walleye and crappie. Shoreline length is 27 miles.