This Geologic Map of the United States (exclusive of Alaska and Hawaii) is published at a scale of 1:2,500,000, and was compiled between 1967 and 1971 by Philip B. King and Helen M. Beikman, with geologic cartography by Gertrude J. Edmonston. Use this map for teaching and learning about the geology of the continental United States, and to explore the relationship between geology, minerals, population, and physical processes both past and present.
**Map is in two sheets with an accompanying legend.** East Half ordering Id #28920 Legend ordering Id #28921