TY  - RPRT
TI  - Digital mining claim density map for Federal lands in the Pacific Northwest
AU  - Harry W. Campbell
AU  - Paul C. Hyndman
PY  - 1996
DO  - 10.3133/ofr96737
UR  - https://pubs.usgs.gov/publication/ofr96737
ID  - ofr96737
ER  -