http://en.wikipedia.org/wiki/Image:Corduroyroad.jpg

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• (del) (cur) 11:35, 21 May 2005 . . Sonett72 (Talk | contribs) . . 400×180 (20,082 bytes) (Corduroy road)
• (del) (rev) 11:30, 21 May 2005 . . Sonett72 (Talk | contribs) . . 400×180 (11,901 bytes) (Corduroy road)

Corduroy road

Source: http://www.fs.usda.gov/eng/pubs/htmlpubs/htm00232839/page08l.htm

This image is a work of the Forest Service of the United States Department of Agriculture. As a work of the U.S. federal government, the image is in the public domain.