1. Surficial geologic map of the Chewelah 30ʹ x 60ʹ quadrangle, Washington and Idaho Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading
2. Surficial geologic map of the Rocky Flats Environmental Technology Site and vicinity, Jefferson and Boulder counties, Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading