Panorama of gently dipping lava flows and tuff beds, as seen looking down San Francisco Creek. Rio Grande County, Colorado. 1916.
Dates
Date Taken
1916
Summary
Form a panorama of gently dipping lava flows and tuff beds, as seen looking down San Francisco Creek. Dog Mountain, center is capped by a remnant of latite and basalt of the Hinsdale formation; the upper steep slopes are Piedra rhyolite, the lower ones are Alboroto rhyolite. Conejos quartz latite underlies the flat foreground. The flows dip regularly toward the San Luis Valley. Rio Grande County, Colorado. July 1, 1916. Figure 17, in U.S.Geological Survey Professional paper 258. 1956.
Summary
Form a panorama of gently dipping lava flows and tuff beds, as seen looking down San Francisco Creek. Dog Mountain, center is capped by a remnant of latite and basalt of the Hinsdale formation; the upper steep slopes are Piedra rhyolite, the lower ones are Alboroto rhyolite. Conejos quartz latite underlies the flat foreground. The flows dip regularly toward the San Luis Valley. Rio Grande County, Colorado. July 1, 1916. Figure 17, in U.S.Geological Survey Professional paper 258. 1956.
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