00644cam a22002171 4500 gs 22000281 DLC 20260227111326.0 760421s1922 xx 000 0 eng gs 22000281 (OCoLC)2129923 DLC TxEU DLC QE92.M6 G4 George, Russell D., 1866- Notes on the geology of the line of the proposed Moffat tunnel, by R. D. George. Boulder, Col., Colorado Geological Survey, 1922. 11 p. 23 cm. Geology Colorado. Colorado Geological Survey Moffat tunnel. 26184 26184