You searched for: Author United States. Forest Service Remove constraint Author: United States. Forest Service Subject Environment Remove constraint Subject: Environment Subject Biotic communities Remove constraint Subject: Biotic communities Institution Stanford Remove constraint Institution: Stanford Place Massachusetts Remove constraint Place: Massachusetts
2004. United States. Forest Service. This polygon shapefile is commonly called Bailey's ecoregions and shows ecosystems of regional extent in the United States, Puerto Rico, and the U.... National Atlas of the United States.