Form a panoramic view of Cumberland and Columbus basins, the sharp hinge fold that characterizes the La Plata dome passes down the left side of Columbus Basin but is obscured by the large porphyry mass on Snowstorm Peak (Cumberland Mountain and Snowstorm Peak are left and right respectively in photo 32).

Form a panoramic view of Cumberland and Columbus basins, the sharp hinge fold that characterizes the La Plata dome passes down the left side of Columbus Basin but is obscured by the large porphyry mass on Snowstorm Peak (Cumberland Mountain and Snowstorm Peak are left and right respectively in photo 32). These basins and the one at the head of the South Fork Hermosa Creek shown in the left foreground have been glaciated; view looking southeast from Indian Trail Ridge. La Plata County, Colorado. Circa 1936. Plate 6-A, in U.S.Geological Survey Professional paper 219. 1949.

Categories: Image; Tags: Colorado Professional Paper 219, Panoramic, Professional Papers, photo print

Form a panoramic view of Cumberland and Columbus basins, the sharp hinge fold that characterizes the La Plata dome passes down the left side of Columbus Basin but is obscured by the large porphyry mass on Snowstorm Peak (Cumberland Mountain and Snowstorm Peak are left and right respectively in photo 32).

Form a panoramic view of Cumberland and Columbus basins, the sharp hinge fold that characterizes the La Plata dome passes down the left side of Columbus Basin but is obscured by the large porphyry mass on Snowstorm Peak (Cumberland Mountain and Snowstorm Peak are left and right respectively in photo 32). These basins and the one at the head of the South Fork Hermosa Creek shown in the left foreground have been glaciated; view looking southeast from Indian Trail Ridge. La Plata County, Colorado. Circa 1936. Plate 6-A, in U.S.Geological Survey Professional paper 219. 1949.

Categories: Image; Tags: Colorado Professional Paper 219, Panoramic, Professional Papers, photo print

View showing a part of the steep fold that characterizes the La Plata Dome, at the extreme right, the beds dip steeply toward the west but on Jackson Ridge they are nearly horizontal.

View showing a part of the steep fold that characterizes the La Plata Dome, at the extreme right, the beds dip steeply toward the west but on Jackson Ridge they are nearly horizontal. Looking northeast from Helmet Peak to Spiller and Hesperus Peaks. Montezuma County, Colorado. Circa 1936. Plate 7-A, in U.S.Geological Survey Professional paper 219. 1949.

Categories: Image; Tags: Colorado Professional Paper 219, Professional Papers, photo print

Dolores formation on west side of Junction Creek, the white cliff at the top is Entrada sandstone.

Dolores formation on west side of Junction Creek, the white cliff at the top is Entrada sandstone. This is the best-exposed section of the Dolores in the district; view 1.3 miles below mouth of Castle Creek. La Plata County, Colorado. Circa 1936. Plate 3-B, in U.S.Geological Survey Professional paper 219. 1949.

Categories: Image; Tags: Colorado Professional Paper 219, Formations, Professional Papers, photo print