Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This is a hillshade raster data set for Ada County. The data set was created using the Hillshade tool, and is defined by ESRI as “the hypothetical illumination of a surface by determining illumination values for each cell in a raster”. The data set was derived from the National Elevation Dataset (NED), produced by the US Geological Survey (USGS) in 1/3 arc-second resolution. This data will be updated when newer, more accurate data becomes available. It is current to the date of publication.</SPAN></P></DIV></DIV></DIV>