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You searched for: Author United States Geological Survey Remove constraint Author: United States Geological Survey Subject Hydrology Remove constraint Subject: Hydrology Data type Raster Remove constraint Data type: Raster
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1. Estimated Percentages of Impervious Surfaces in 2001, Derived from the National Land Cover Database (NLCD 2001): Indiana

2001. United States Geological Survey. IS2001USGS_IN is a grid (30-meter cell size) showing estimated percentages of impervious surfaces in Indiana in 2001. This grid is a subset of the ...