1. Geologic map of the MTM 25047 and 20047 quadrangles, central Chryse Planitia/Viking 1 Lander Site, Mars Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by USGS Information Services Format: Map Access & Availability: Loading
2. Lithologic, age group, magnetopolarity, and geochemical maps of the Springerville volcanic field, east-central Arizona Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : Information Services [distributor] Format: Map Access & Availability: Loading