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81. North Atlantic Maintained Channels, 2013

2013. I.M. Systems Group. This polygon shapefile represents maintained navigation channels in the North Atlantic United States. The condition of navigation channels is repor... United States. National Oceanic and Atmospheric Administration.

82. Parcel Boundaries: Solano County, California, 2013

2013. County of San Mateo Information Services Department. This polygon shapefile depicts boundaries of parcels over which the County of Solano, California held authority in 2013. A Parcel is a piece of rea... County of San Mateo Information Services Department.

83. Particulate Matter (PM-10): Federal Non-Attainment Area Designations, U.S. Region 9, 2013

2013. United States. Environmental Protection Agency. Region IX. This polygon shapefile contains nonattainment areas for particulate matter < 10 microns. Nonattainment areas are geographic areas which have not... United States. Environmental Protection Agency. Region IX.

84. Provinces, Laos, 2013

2013. International Steering Committee for Global Mapping and Laos. Kom Phǣnthī hǣng Sat. This polygon shapefile represents provinces in Laos. The Global Map Lao People's Democratic Republic version 2.0 was developed using 1:100,000 Topo... International Steering Committee for Global Mapping.

85. Public Use Airports, California, 2013

2013. Uppal, Danny and California. Department of Transportation. This polygon shapefile contains the boundaries of public use airports in California for 2013. These data were created from California Department of... California. Department of Transportation.

86. Regions, Niger, 2013

2013. International Steering Committee for Global Mapping and Institute Geographic National of Niger. This polygon shapefile represents regions of Niger. The Global Map Niger version 2 was developed to update Global Map Niger version 1 based on Glob... International Steering Committee for Global Mapping.

87. Sector Boundaries, Guinea-Bissau, 2013

2013. International Steering Committee for Global Mapping and Portugal. Direcção Geral de Ordenamento do Território. This polygon shapefile represents the sector boundaries in Guinea-Bissau. The Global MapGuinea-Bissau version 2 was developed to update Global Map ... International Steering Committee for Global Mapping.

88. Shellfish Management Areas, Northeastern United States, 2013

2013. Maine. Department of Marine Resources. This polygon shapefile represents shellfish growing and classification areas for states in the northeastern U.S. including Connecticut, Maine, Mass... Northeast Ocean Data.

89. Subwatershed Boundaries, California (12-digit HUC), 2013

2013. Wyoming Geographic Information Sciences Center. This polygon shapefile contains the 6th level, 12-digit hydrologic unit code (HUC) sub-watershed boundaries of California. This layer consists of g... Wyoming Geographic Information Sciences Center.

90. United States Census Block Groups, 2013

2013. Tele Atlas (Firm : U.S.) and Environmental Systems Research Institute (Redlands, Calif.). U.S. Census Block Groups represents the U.S. Census block groups of the United States in the 50 states, the District of Columbia, and Puerto Rico. ... Environmental Systems Research Institute (Redlands, Calif.).