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1978. United States. Bureau of Transportation Statistics and Stackhouse, Cecil. This polygon shapefile depicts nonattainment and maintenance areas for the United States and its Territories for the enforcement of the sulfur diox... United States. Bureau of Transportation Statistics.
2010. United States. Bureau of Transportation Statistics and Stackhouse, Cecil. This polygon shapefile depicts nonattainment and maintenance areas for the United States and its Territories for the enforcement of the sulfur diox... United States. Bureau of Transportation Statistics.
2010. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This polygon shapefile represents the boundary of the Northeastern United States. This is a utility data set for managing and display of data in th... Coastal Services Center (U.S.).
2015. Monterey County (Calif.). This polygon shapefile contains the boundary of the Northern Salinas Valley mosquito abatement district, located in Monterey County, California. Th... Monterey County (Calif.).
2012. I.M. Systems Group. The term disposal site means a finally approved and precise geographical area within which ocean dumping of wastes is permitted under conditions sp... Coastal Services Center (U.S.).
2015. County of San Mateo Information Services Department. This polygon shapefile depicts ward boundaries for the Midpeninsula Regional Open Space District in the County of San Mateo, California. The distri... County of San Mateo Information Services Department.
2005, 2006, 2007, and 2008. United States. Department of Commerce, United States. National Oceanic and Atmospheric Administration, and United States. National Ocean Service. This polygon shapefile contains outer continental shelf (OCS) lease blocks in the northeast region. OCS blocks are used to define small geographic ... United States. National Ocean Service.
2003. This polygon shapefile displays the extent of power plant outfall pipelines and diffusers in Southern California coastal waters derived from a vari... California. Department of Fish and Game. Marine Resources Region.
2020. County of Santa Clara. Geographic Information Services. This polygon shapefile represents park boundaries in Santa Clara County, California. The Santa Clara County Planning Office is part of the Departme... County of Santa Clara. Geographic Information Services.
2006. IUCN--The World Conservation Union and UNEP World Conservation Monitoring Centre. This polygon shapefile shows the locations of protected areas (parks and reserves) in Kenya. This data was used in maps throughout Nature's Benefit... UNEP World Conservation Monitoring Centre.