GeoData @ UCB

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You searched for: Format Shapefile Remove constraint Format: Shapefile Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Place Massachusetts Remove constraint Place: Massachusetts Place Arkansas Remove constraint Place: Arkansas
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81. Time Zones of the United States, 2005

1972. National Atlas of the United States. This polygon shapefile portrays the time zones of the United States, Puerto Rico, and the U.S. Virgin Islands. Also included are the Greenwich Mean... National Atlas of the United States.

82. Volcanoes: United States, 2004

2004. National Atlas of the United States. This point shapefile includes Holocene volcanoes, which are those thought to be active in the last 10,000 years, that are within an extended area o... National Atlas of the United States.