TY  - RPRT
TI  - Radioactive black sand placer deposits of the Challis 1° x 2° quadrangle, Idaho
AU  - T. H. Kiilsgaard
AU  - W. E. Hall
PY  - 1986
DO  - 10.3133/ofr86633
UR  - https://pubs.usgs.gov/publication/ofr86633
ID  - ofr86633
ER  -