TY - BOOK AU - Severson, R. C. CN - I 19.76: CY - Denver, Colo. : DA - [1991] ID - 241502 KW - Water KW - Water N1 - Cover title. N1 - "October 30, 1991" N1 - Imprint from transmittal sheet. PB - U.S. Geological Survey, PP - Denver, Colo. : PY - [1991] T1 - Field trip guidebook for surface-water contamination and it's remediation near Idaho Springs, Colorado TI - Field trip guidebook for surface-water contamination and it's remediation near Idaho Springs, Colorado VL - 91-426 ER -