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Area 51 is the common name of a highly classified United States Air Force (USAF) facility within the Nevada Test and Training Range. A remote detachment administered by Edwards Air Force Base , the facility is officially called Homey Airport ( ICAO : KXTA , FAA LID : XTA ) [ 2 ] or Groom Lake (after the salt flat next to its airfield).
This is a list of satellite map images with missing or unclear data. Some locations on free, publicly viewable satellite map services have such issues due to having been intentionally digitally obscured or blurred for various reasons of this. [ 1] For example, Westchester County, New York asked Google to blur potential terrorism targets (such ...
The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km 2) in portions of eight states (South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas). [1]
Lake Hemet is a water storage reservoir located in the San Jacinto Mountains in Mountain Center, Riverside County, California, [1] with a capacity of 14,000 acre-feet (17,000,000 m 3) [2] of water. It was created in 1895 with the construction of Lake Hemet Dam. [3] Originally built by a private company, today it is owned and operated by the ...
GIS file format. A GIS file format is a standard for encoding geographical information into a computer file, as a specialized type of file format for use in geographic information systems (GIS) and other geospatial applications. Since the 1970s, dozens of formats have been created based on various data models for various purposes.
The United States National Grid (USNG) is a multi-purpose location system of grid references used in the United States. It provides a nationally consistent "language of location", optimized for local applications, in a compact, user friendly format. It is similar in design to the national grid reference systems used in other countries.
In geography, a pole of inaccessibility is the farthest (or most difficult to reach) location in a given landmass, sea, or other topographical feature, starting from a given boundary, relative to a given criterion. A geographical criterion of inaccessibility marks a location that is the most challenging to reach according to that criterion.
U.S. Route 51 or U.S. Highway 51 ( US 51) is a major south–north United States highway that extends 1,277 miles (2,055 km) from the western suburbs of New Orleans, Louisiana, to within 150 feet (46 m) of the Wisconsin – Michigan state line. As most of the United States Numbered Highways ending with "1", it is a cross-country north–south ...