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Folded Triassic limestone, Cascade, S.D., late 1890s or early 1900s

Folded Triassic limestone, Cascade, S.D., late 1890s or early 1900s

Located near Cascade 12 miles South of Hot Springs, South Dakota.
Professer Thomas H. MacBride seated on petrified log west of Cycad field near Minnekahta, S.D., late 1890s or early 1900s

Professer Thomas H. MacBride seated on petrified log west of Cycad field near Minnekahta, S.D., late 1890s or early 1900s

Folded beds of limestone, Buffalo Gap, S.D., late 1890s or early 1900s

Folded beds of limestone, Buffalo Gap, S.D., late 1890s or early 1900s

Conglomerate near the "Plunge", Hot Springs, South Dakota, late 1890s or early 1900s

Conglomerate near the "Plunge", Hot Springs, South Dakota, late 1890s or early 1900s

Purple limestone of red beds, Chatauqua grounds, Hot Springs, S.D., late 1890s or early 1900s

Purple limestone of red beds, Chatauqua grounds, Hot Springs, S.D., late 1890s or early 1900s

Mr. Snyder, typical cowboy, on the ranch of Payne and Arnold, Minnekahta, S.D., late 1890s or early 1900s

Mr. Snyder, typical cowboy, on the ranch of Payne and Arnold, Minnekahta, S.D., late 1890s or early 1900s

Folded beds of gypsum, Cascade, S.D., late 1890s or early 1800s

Folded beds of gypsum, Cascade, S.D., late 1890s or early 1800s

Cliff of Niobrara chalk on Cheyenne River east of Fall River, Hot Springs, S.D., late 1890s or early 1900s

Cliff of Niobrara chalk on Cheyenne River east of Fall River, Hot Springs, S.D., late 1890s or early 1900s

Red Canyon near Minnekahta, S.D., late 1890s or early 1900s

Red Canyon near Minnekahta, S.D., late 1890s or early 1900s

Falls of Fall River, Dakota Sandstone and Benton shales at falls, Fall River, Hot Springs, S.D., late 1890s or early 1900s

Falls of Fall River, Dakota Sandstone and Benton shales at falls, Fall River, Hot Springs, S.D., late 1890s or early 1900s

Located 4 miles East of Hot Springs, South Dakota.