United States Geologic Map - 3 Piece
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 beautiful geologic 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.
** The map is in two sheets with an accompanying legend - which is the 3rd piece.