The Buffalo Peaks Andesite of central Colorado a restudy and adoption of a formal name for the andesite that was the subject of Bulletin 1 of the U.S. Geological Survey Restudy and adoption of a formal name for the andesite that was the subject of Bulletin 1 of the U.S. Geological Survey Sanders, George F. creator author. Naeser, Charles W. author. Scott, Glenn R. 1918-2012 author. Geological Survey (U.S.) issuing body. text bibliography dcu 1976 monographic eng remote 1 online resource (iii, 8 pages) : illustrations. by George F. Sanders, Jr., Glenn R. Scott, and Charles W. Naeser. Includes bibliographical references (page 8). n-us-co Andesite Colorado Chaffee County Andesite Colorado Lake County Andesite Colorado Park County Geology, Stratigraphic Oligocene Andesite Geology, Stratigraphic Oligocene Geologic Epoch Colorado Chaffee County Colorado Lake County Colorado Park County From 25 to 40 million years ago fast I 19.3:1405-F I 19.3:1405-F Buffalo Peaks Andesite of central Colorado Sanders, George F. (DLC) 75619372 (OCoLC)1960346 Geological Survey bulletin ; 1405-F Contributions to stratigraphy https://purl.fdlp.gov/GPO/gpo74287 COP 140805 20211120181259.0 in00003730675 eng