Figure 4.--Topographic and geologic map of sampled stratigraphic section of Sangre de Cristo Formation at Eureka Mountain (from Lindsey and Schaefer, 1984). Red dot, sample location and number; green line, measured section; Qrf, Quaternary rockfall deposits; Qpt, Pinedale till; Tf, felsite dikes and sills; PlPsc, Permian and Pennsylvanian Sangre de Cristo Formation, Crestone Conglomerate Member; PlPsl, Sangre de Cristo Formation, lower part; lPmu, Pennsylvanian Minturn Formation, upper part; mls, marker limestone.