Imagery and maps produced by USGS EROS
By EROS History Project
1990 (approx.)

Detailed Description
Imagery and maps produced by USGS EROS: Left: A pair of Landsat MSS images of the Mississippi River Delta from 1973 and 1989. Center: A 1990 map of U.S. greenness classes. Right: A 1993 Global Land 1 Kilometer AVHRR Composite.
Sources/Usage
Public Domain.