Data for Puerto Rico and the U.S. Virgin Islands are aggregated by 6-digit hydrologic unit. NRI maps reflect national patterns rather than site- specific information. No data are collected for any year that land is in this ownership. When viewed vertically, canopy cover is 25 percent or greater. For classification as forest land, an area must be at least one acre and 100 feet wide.
Land cover is the vegetation or other kind of material that covers the land surface.
Forest For additional information contact the Resource Assessment Division. Please include the Product ID you are inquiring about. If you use our analysis products, please be aware of our disclaimer .