1. Geologic maps of upper Cenozoic deposits in central California Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, VA : U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1993 Resource Type: Map Access & Availability: Loading
2. Geologic map of upper Eocene to Holocene volcanic and related rocks of the Cascade Range, Oregon Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : Map Distribution [distributor] Resource Type: Map Access & Availability: Loading