MIT Libraries logo

Search Constraints

Number of results to display per page

Search Results

1. United States Urbanized Areas, 2008

2001. National Atlas of the United States and the United States Geological Survey and ESRI. United States Urbanized Areas is a polygon theme representing urban areas in the United States derived from the urban areas layer of the Digital Ch... ESRI.

2. World Wildlife Fund Marine Ecoregions, 2008

2001. World Wildlife Fund and ESRI. World Wildlife Fund Marine Ecoregions is a polygon theme representing global marine ecoregions. Ecoregions are defined as relatively large areas of... ESRI.