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Filters: Keyword is Trails and Author is U. S. Department of the Interior [Clear All Filters]

1966

U. S. Department of the Interior, Daniel M. Ogden, Hamilton K. Pyles, Theodore L. Swem, and Eldon F. Holmes. Trails for America: Report on the Nationwide Trails Study. U. S. Department of the Interior, Bureau of Outdoor Recreation, 1966.