2008. Tompkins County ITS GIS Division. Topographic contours at intervals of 2 feet, covering the Town of Dryden in Tompkins County, New York. These elevation contours were derived from M...
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2008. Tompkins County ITS GIS Division. Topographic contours at intervals of 2 feet, covering the Town of Enfield in Tompkins County, New York. These elevation contours were derived from ...
2008. Tompkins County ITS GIS Division. Topographic contours at intervals of 2 feet, covering the Town of Groton in Tompkins County, New York. These elevation contours were derived from M...
2008. Tompkins County ITS GIS Division. Topographic contours at intervals of 2 feet, covering the Town and City of Ithaca in Tompkins County, New York. These elevation contours were deriv...
2008. Tompkins County ITS GIS Division. Topographic contours at intervals of 2 feet, covering the Town of Lansing in Tompkins County, New York. These elevation contours were derived from ...
2008. Tompkins County ITS GIS Division. Topographic contours at intervals of 2 feet, covering the Town of Newfield in Tompkins County, New York. These elevation contours were derived from...
2008. Tompkins County ITS GIS Division. Topographic contours at intervals of 2 feet, covering the Town of Ulysses in Tompkins County, New York. These elevation contours were derived from ...
1940. Marshall, Gerald, Mendes, Eric, California Geological Survey, and California. Department of Conservation. This line shapefile depicts contains topographic contours of the Elk River watershed in Humboldt County, California. These countours were derived f... California Geological Survey.
1926. Geological Survey (U.S.). Relief shown by contours and spot heights.; Contour interval 50 feet.; Also shows status of roads.; "Surveyed in 1925-1926."; "N4022-W12115." 53 x ... The Survey (Washington, D.C).
1929. Geological Survey (U.S.). Relief shown by contours and spot heights.; Shows status of roads.; On verso: "The topographic maps of the United States" (text and ill.). 53 x 60 ... The Survey (Washington).