Each dot represents 1,000 acres that were lost.
Developed land includes both urban and built-up areas and rural transportation land.
Dots were aggregated by and placed randomly within 8-digit hydrologic units. Data were not collected on Federal land. This map may not be used to determine site- specific information. When provided, refer to the estimated margins of error to determine suitability of the data for a particular purpose. NRI maps reflect national patterns rather than site-specific information.