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Geology of the Mount Wilson Quadrangle, Western San Juan Mountains, Colorado
A bedded sequence of volcanic and sedimentary rocks more than 5,000 feet thick has been intruded by stocks and laccoliths.
Geology of the Kelso Junction Quadrangle, Iron County, Michigan
Stratigraphy, structure, and economic geology of an area at the west edge of the Colorado Plateau.
Bibliography of North American Geology
1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.
National Union Catalog
Includes entries for maps and atlases.
