US Fish and Wildlife Service Regional Administrative Boundaries

Inherent in any data set used to develop graphical representations, are limitations of accuracy as determined by, among others, the source, scale and resolution of the data. While the USFWS makes every effort to represent the data as completely and accurately as possible (given existing time and resource constraints), the USFWS gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. In addition, the USFWS shall not be held liable for improper or incorrect use of the data described and/or contained in. Graphical representations provided by the use of this data do not represent a legal description of any kind. The data and metadata can be accessed here: http://www.fws.gov/GIS/data/national/index.htm