@article{236308, note = {Accompanied by text (9 p. ; 28 cm.)}, author = {Campbell, Harry W. and Hyndman, Paul C.}, url = {http://library.usi.edu/record/236308}, title = {Digital mining claim density map for Federal lands in Montana: 1996 [microform] /}, publisher = {The Survey,}, recid = {236308}, address = {[Spokane, WA] :}, year = {1998}, }