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You searched for: Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Institution Stanford Remove constraint Institution: Stanford Place Puerto Rico Remove constraint Place: Puerto Rico Data type Polygon Remove constraint Data type: Polygon
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11. National Wilderness Preservation System of the United States, 2006

1972. National Atlas of the United States. This polygon shapefile contains National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S.... National Atlas of the United States.

12. Spread of Africanized Honey Bees in the United States, 1990-2005

1990. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.

13. 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.