1. Maps showing distribution, composition, and age of early and middle Cenozoic volcanic centers in Arizona, New Mexico, and west Texas Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
2. Map showing distribution, composition, and age of early and middle Cenozoic volcanic centers in Idaho, Montana, west-central South Dakota, and Wyoming Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
3. Map showing distribution, composition, and age of early and middle Cenozoic volcanic centers in Colorado and Utah Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
4. Interpretive map and guide to the volcanic geology of Chiricahua National Monument and vicinity, Cochise County, Arizona Author/Creator: Pallister, John S., compiler, writer of added text Publication/Creation: [Reston, Virginia] : U.S. Dept. of the Interior, U.S. Geological Survey, 1997 Resource Type: Map Access & Availability: Loading
5. Geologic map of Tecuamburro Volcano and surrounding area, Guatemala = Mapa geológico del volcán Tecuamburro y área vecina, Guatemala Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
6. Geologic map and structure sections of the Clear Lake volcanics, northern California Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : U.S. Geological Survey Information Services [distributor]. Resource Type: Map Access & Availability: Loading