TY - RPRT TI - Shapefile of the Elevation of the Bedrock Surface Beneath the Rocky Flats Alluvial Fan, Boulder and Jefferson Counties, Colorado AU - Daniel H. Knepper PY - 2003 DO - 10.3133/ofr03443 UR - https://pubs.usgs.gov/publication/ofr03443 ID - ofr03443 ER -