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U.S. Geographic Names Information System Hospitals represents the Federal standard for geographic nomenclature and contains information about the proper names and locations of physical and cultural geographic features located throughout the United States and its Territories. The U.S. Geological Survey developed the Geographic Names Information System (GNIS) for the U.S. Board on Geographic Names, a Federal inter-agency body chartered by public law to maintain uniform feature name usage throughout the Government and to promulgate standard names to the public.
U.S. Census Urban Areas represents the 2010 Census urban areas in the United States. An urban area comprises a densely settled core of census tracts and/or census blocks that meet minimum population density requirements, along with adjacent territory containing non-residential urban land uses as well as territory with low population density included to link outlying densely settled territory with the densely settled core. To qualify as an urban area, the territory identified according to criteria must encompass at least 2,500 people, at least 1,500 of which reside outside institutional group quarters. The U.S. Census Bureau identifies two types of urban areas—Urbanized Areas (UA) of 50,000 or more people and Urban Clusters (UC) of at least 2,500 and less than 50,000 people. The U.S. Census Bureau delineates urban areas that represent densely developed territory, encompassing residential, commercial, and other non-residential urban land uses. In general, this territory consists of areas of high population density and urban land use resulting in a representation of the "urban footprint."
U.S. Census Populated Place Points represents populated place locations within the United States that include both incorporated places and census designated places identified by the U.S. Census Bureau.
U.S. Highways represents the major and minor highways of the United States. These include interstates, U.S. highways, state highways, major roads, and minor roads. This dataset is from the Census 2000 TIGER/Line files. It contains all Class 1, 2, and 3 road segments plus any other road segments necessary to provide network connectivity for the Class_Rte field.
U.S. States (Generalized) represents the 50 states and the District of Columbia of the United States.
U.S. National Atlas Airports represents airports in the United States, Puerto Rico, and U.S. Virgin Islands with airport passenger enplanements of 25 passengers or more per year.
U.S. Census Block Groups represents the Census block groups of the United States in the 50 states, the District of Columbia, and Puerto Rico.
U.S. Census Block Groups represents the Census block groups of the United States in the 50 states, the District of Columbia, and Puerto Rico.
U.S. Counties (Generalized) represents the counties of the United States in the 50 states and the District of Columbia.
U.S. Counties (Generalized) represents the counties of the United States in the 50 states and the District of Columbia.