Selkirk is a state fishing access site on the Musselshell River. There are about 6 undesignated sites in a wooded area on the bank of the river. The big attraction here is the trees. The river bank is quite bushy so you may have to go up or downstream a ways to find a fishing spot. There is also a swimming spot accessible.
Selkirk is located off Highway 12 near mile post 80 about 19 miles west of Harlowton, Montana.1