1991. Metro Data Resource Center. This polygon data layer represents hydric soils for Portland Metro, Oregon in 1991. The dataset was originally published by the Metro Data Resource...
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1999. Colorado Geological Survey. This point data layer represeents mountain summits for Colorado in 1999. The dataset was originally published by the Colorado Geological Survey in ... Colorado Geological Survey.
U-Spatial. Point feature representing major resource extraction locations, globally.
44. Reconstruction of North American Drainage Basins and River Discharge Since the Last Glacial Maximum)
Wickert, Andrew D. Drainage basins and river discharges since the Last Glacial Maximum; released along with the article "Reconstruction of North American drainage bas...
1991. Metro Data Resource Center. This polygon data layer represents soils for Portland Metro, Oregon in 1991. The dataset was originally published by the Metro Data Resource Center...