TY - RPRT TI - Geophysical logs of 20 holes drilled in 1977 in the Yampa coal field, Hamilton, Horse Gulch, and Pagoda quadrangles, Moffat County, Colorado AU - R. F. Meyer PY - 1978 DO - 10.3133/ofr78366 UR - https://pubs.usgs.gov/publication/ofr78366 ID - ofr78366 ER -