TY - RPRT TI - Geology of the Straight Creek tunnel site, Clear Creek and Summit Counties, Colorado, and its predicted effect on tunnel construction AU - Charles Sherwood Robinson AU - Fitzhugh T. Lee PY - 1962 DO - 10.3133/ofr62111 UR - https://pubs.usgs.gov/publication/ofr62111 ID - ofr62111 ER -