EarthWorks Geospatial Catalog

Seasonal land cover regions [cartographic material] / produced by the EROS Data Center, National Mapping Division, U.S. Geological Survey, and the University of Nebraska-Lincoln.

Based on an approach that combines satellite imagery, digital elevation, ecoregions, and climate data sets to build a database containing 159 separate land-cover regions across the lower 48 states. Verso includes a USGS level II land-cover map; additional small scale maps which depict length of vegetation, and onset and peak of greenness, shown in month-by-month progressions; and text. EROS map printed through GPO (1993-556-415). Depository library and sales copies were USGS map with a different scale.
The Survey ;
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