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  • All fields: Triassic
(5 results)



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    • Near Jacob's Pool

    • A man in a hat, probably from the geological survey, stands and faces the Vermilion Cliffs, sandstone formations in Coconino County, Arizona. Shows wagon ruts and footprints in the clay soil on a hill near Jacobs Pool.
    • Coconino County (Ariz.)--1870-1880.; Vermilion Cliffs (Utah and Ariz.)--1870-1880.; Canyons--Arizona--Coconino County--1870-1880.; Cliffs--Arizona--Coconino County--1870-1880.; Expeditions & surveys--Arizona--Coconino County--1870-1880.;...
    • 1872
    • History of Denver

    • Comprehenisve study of the history of the Denver area before, during, and after the founding of the city.
    • Cities and towns--Colorado--Denver.
    • 1901

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