TY - BOOK AU - Pettem,Silvia TI - Red rocks to riches: gold mining in Boulder County, then and now SN - 0937050105 AV - TN423.C75 B667x U1 - 978.8/63 22 PY - 1980/// CY - Boulder, Colo. PB - Stonehenge Books KW - Gold mines and mining KW - Colorado KW - Boulder County UR - http://www.archive.org/details/redrockstoriches00pett UR - http://www.openlibrary.org/books/OL8414310M ER -