TY - RPRT TI - Geologic and assay logs, drill-holes JD-327 and JD-339, Jo Dandy area, Colorado: Nov. 23, 1962 AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1962 DO - 10.3133/ofr62142 UR - https://pubs.usgs.gov/publication/ofr62142 ID - ofr62142 ER -