TY - RPRT TI - Location of potential interest for fracturing oil shale with nuclear explosives for in situ retorting, Piceance Creek Basin, Rio Blanco County, Colorado AU - J. R. Ege PY - 1967 DO - 10.3133/ofr6786 UR - https://pubs.usgs.gov/publication/ofr6786 ID - ofr6786 ER -