Type:

Other

Description:

This collection of aerial photographs is intended to show changes over time in the landscape of Colorado; for instance, the appearance of a reservoir in a mountain valley, changes in vegetation or ground cover, or the growth of towns and cities. The online collection, consisting of over 1700 digitized photos, was taken by the U.S. Forest Service from 1938 to 1947 and covers Boulder, Clear Creek, Eagle, Gilpin, Grand, Jefferson, Larimer, and Summit Counties. The photographs can be searched or browsed using a map search or a geographic keyword search. Searches will bring up information and metadata (longitude and latitude, landmark, county, topographic quadrangle, scale, and others) about each photograph and a 150 dpi image that can be downloaded free of charge.

Subjects:

    Education Levels:

    • Grade 1
    • Grade 2
    • Grade 3
    • Grade 4
    • Grade 5
    • Grade 6
    • Grade 7
    • Grade 8
    • Grade 9
    • Grade 10
    • Grade 11
    • Grade 12

    Keywords:

    Informal Education,Higher Education,NSDL,Geology,Undergraduate (Lower Division),Undergraduate (Upper Division),NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-111-908,Social Sciences,High School,Vocational/Professional Development Education,oai:nsdl.org:2200/20120118122531766T,Geoscience,Graduate/Professional,Geography

    Language:

    English

    Access Privileges:

    Public - Available to anyone

    License Deed:

    Creative Commons Attribution Non-Commercial Share Alike

    Collections:

    None
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    Non-profit Tax ID # 203478467