Data voids in the SRTM coverage of the conterminous United States

Data voids in the SRTM coverage of the conterminous United States.

Note the following void areas on the figure: northern Florida/southern Georgia, North Carolina-South Carolina border, Rhode Island-Massachusetts border, central Iowa, northern Nevada, western Utah, northern Arizona, and far western Texas. Collectively, these areas sum to 40,600 square kilometers, which represents 0.52 percent of the conterminous United States land area. These void areas are contained within the following ecoregions: Southern Coastal Plain, Middle Atlantic Coastal Plain, Southeastern Plains, Northeastern Coastal Zone, Western Corn Belt Plains, Northern Basin and Range, Central Basin and Range, Arizona/New Mexico Plateau, and Chihuahuan Deserts.