@article {51361,
	title = {United States Department of Agriculture Aerial Photographs of Linn, Benton, and Lincoln Counties, Oregon, 1972-1994 (bulk 1994)},
	year = {1994},
	note = {Covers 1972-1994.  These are aerial photographs assembled and used by the USDA field office in Tangent, Oregon for soil conservation and other purposes. The photographs were made by the National Aerial Photography Program. For 1994, the collection includes detailed index maps and large (24x24 inch prints) as well as smaller (10x10 inch) photo proofs. Index maps are also available for the 1990 and 1985 photographs. The 1985 images only include Lincoln County. For all other years, there are no indexes available and all of the images are 9x9 inch or 10x10 inch photo proofs. However, a small subset of the 1972 images have descriptions of the locations depicted in the photographs and the collection includes one 24x24 inch print of the 1972 flights.  The OSU Libraries has an historical aerial photograph collection with images primarily of the Willamette Valley and western Oregon taken in the mid-1930s through 1970s. Current aerial photographs are available through the University of Oregon Libraries Aerial Photography Collection and Research Service and the Oregon Imagery Explorer http://oregonexplorer.info/imagery .},
	keywords = {aerial photography, geographic information system, Lincoln County (Or.)},
	author = {U.S. Department of Agriulture. Economic Research Service,,}
}
