Reconnaissance geologic map of the Cripple Creek-Pikes Peak area, Teller, Fremont, and El Paso counties, Colorado
1968 ◽
1968 ◽
1908 ◽
Vol 65
(1671supp)
◽
pp. 19-19
2016 ◽
Vol 5
(1)
◽
pp. 1507-1513
◽