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  1. The cypress and juniper trees of the Rocky Mountain region /
    By: Sudworth, George B. - United States.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1915.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Conifers  Cypress  Junipers  Rocky Mountains region  
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  2. The life history of lodgepole pine in the Rocky Mountains /
    By: Mason, David Townsend,
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1915.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Conifers  Lodgepole pine  Rocky Mountains region  
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  3. Miscellaneous conifers of the Rocky Mountain region /
    By: Sudworth, George B.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1918.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Conifers  Rocky Mountains region  
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  4. Observations on some species of the genera Tetrao and Ortyx, natives of North America with descriptions of four new species of the former, and two of the latter genus / by David Douglas.
    By: Douglas, David,
    Publication info: S.l. :s.n.,1828?
    Contributed by: Canadiana.org (archive.org)
    Subjects: Birds  Grouse  Rocky Mountains region  Tetraonidae  
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  5. The Pine trees of the Rocky Mountain region.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1917.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Forests and forestry  Pine  Rocky Mountains region  
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  6. Wild flowers of the Rocky Mountains from original water color sketches drawn from nature by Emma Homan Thayer.
    By: Thayer, Emma Homan,
    Publication info: New York :Cassell Pub. Co.,c1889.
    Contributed by: Canadiana.org (archive.org)
    Subjects: Colorado  Description and travel  Rocky Mountains  Rocky Mountains region  Wild flowers  
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