TY - RPRT TI - Geophysical logs for 34 holes drilled during 1980 in the Yampa Coal Field, Moffat and Routt Counties, Colorado AU - E. A. Johnson AU - J.L. Hook PY - 1985 DO - 10.3133/ofr8543 UR - https://pubs.usgs.gov/publication/ofr8543 ID - ofr8543 ER -