Version List for Irwin, W.P., Yule, J.D., Court, B.L., Snoke, A.W., Stern, L.A., and Copeland, W.B., 2011, Reconnaissance Geologic Map of the Dubakella Mountain 15' Quadrangle, Trinity, Shasta, and Tehama Counties, California: U.S. Geological Survey Scientific Investigations Map 3149, map scale 1:50,000. Revisions Original release, February 2011 sim3149-readme.txt sim3149-version.txt sim3149-map.pdf sim3149-arcpkg sim3149-atts.e00 sim3149-fosl.e00 sim3149-geol.e00 sim3149-lins.e00 sim3149-mine.e00 sim3149-galc.e00 sim3149-metadata sim3149-base sim3149-base sim3149-basenotes.txt