TY  - RPRT
TI  - Coal resource occurrence and coal development potential maps of the Negro Butte Quadrangle, Johnson and Campbell counties, Wyoming
AU  - IntraSearch Inc.
PY  - 1979
DO  - 10.3133/ofr79177
UR  - https://pubs.usgs.gov/publication/ofr79177
ID  - ofr79177
ER  -