You searched for: Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Access Public Remove constraint Access: Public Subject Environment Remove constraint Subject: Environment Subject Ecological regions Remove constraint Subject: Ecological regions Place Massachusetts Remove constraint Place: Massachusetts Data type Polygon Remove constraint Data type: Polygon Year 2004 Remove constraint Year: 2004
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.