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  • All fields: riffles
(12 results)



Display: 50

    • Shaker table, Holy Cross City

    • View of a shaker table and ruble in a clearing in the ghost town of Holy Cross City (Eagle County), Colorado. Shows a rectangular deck with an axle and longitudinal riffles used to separate gold from gold ore.
    • Holy Cross City (Colo.)--1960-1970.; Machinery--Colorado--Holy Cross City--1960-1970.
    • 1963
    • Shaker table in mill N. of Animas Forks

    • View of a shaker table in an unidentified abandoned mill in San Juan County, Colorado. Shows a rectangular deck with longitudinal riffles used to separate gold from gold ore.
    • San Juan County (Colo.)--1960-1970.; Gold mining--Colorado--San Juan County--1960-1970.; Interiors--Colorado--San Juan County--1960-1970.; Machinery--1960-1970.; Ore industry--Colorado--San Juan County--1960-1970.
    • 1969
    • P. W. A. [sic] mining class - Denver

    • View shows W. P. A. students learning the art of placer mining by using a rocker on the banks of an unidentified stream, Denver, Colorado. A rocker consists of a screen box on top draining to a larger box below which is inlaid with riffles to catch...
    • United States. Works Progress Administration of Colorado.--1930-1940.; Denver (Colo.)--1930-1940.; Hydraulic mining--Colorado--Denver--1930-1940.; Mining equipment--Colorado--Denver--1930-1940.; Mining--Colorado--Denver--1930-1940.
    • [1930]
    • The Scriptbook

    • Booklet created by The Script Club of East High School in Denver, Colorado. Members of The Script Club, the writing club of East High, submitted their own works for create this booklet. Included are poems, essays, sketches and stories written by...
    • East High School (Denver, Colo.)--Students--Writings.; Public schools--Colorado--Denver.; High school students' writings--Colorado--Denver--Periodicals.; High schools--Colorado--Denver.; East High School (Denver, Colo.)
    • 1932 May
    • Denver High School: East Side Annual 1913

    • 1913 Yearbook from East Denver High School.
    • East High School (Denver, Colo.)--Students--Yearbooks.; Denver Public Schools--Students--Yearbooks.; School yearbooks--Colorado--Denver.
    • 1913
    • 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
    • Municipal Facts: Volume 11 Numbers 7 and 8, 1928 July-August

    • Newsletter produced every two months by the City of Denver highlighting the civic, administrative, and informational aspects of government within the City.
    • Local government--Colorado--Denver.; Cities and towns--Colorado--Denver.
    • 19280700

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