View of a rock formation identified as Mother Grundy in Clear Creek Canyon in Clear Creek County, Colorado. Union Pacific, Denver, and Gulf Railway narrow gauge tracks are near the edge of Clear Creek surrounded by steep canyon walls.
Union Pacific, Denver, and Gulf Railway Company--1890-1900.; Clear Creek (Clear Creek County, Colo.)--1890-1900.; Clear Creek Canyon (Colo.)--1890-1900.; Clear Creek County (Colo.)--1890-1900.; Rock formations--Colorado--Clear Creek...
[between 1890 and 1900?]
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