Federal forest land converted to developed land between 1992 and 1997 within each 8-digit hydrologic unit. A total of 4.8 million acres were converted.
Developed land includes urban and built-up areas and rural transportation land.
Metropolitan Statistical Areas are indicated by black squares. Data are not collected on Federal land. Data are not available for Alaska or the Pacific Basin. Data for Puerto Rico and the U.S. Virgin Islands are shown by 6-digit hydrologic unit. NRI maps reflect national patterns rather than site- specific information.