A total of 1.96 million acres were converted.
Developed land includes urban and built-up areas and rural transportation land.
Metropolitan Statistical Areas are indicated by black squares. NRI maps reflect national patterns rather than site- specific information. No data are collected for any year that land is in this ownership. This would include areas where introduced hardy and persistent grasses, such as crested wheatgrass, are planted and such practices as deferred grazing, burning, chaining, and rotational grazing are used, with little or no chemicals or fertilizer being applied. Grasslands, savannas, many wetlands, some deserts, and tundra are considered to be rangeland.