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It serves as the national archive of remotely sensed images of the Earth's land surface acquired by civilian satellites and aircraft. EROS is located northeast of Sioux Falls, South Dakota, between Baltic and Garretson. In the 1960s the federal government decided it needed a single facility to handle and distribute Landsat satellite data. A ...
Continental U.S. physiographic regions. Region 12e identifies the Dissected Till Plains. The Dissected Till Plains are physiographic sections of the Central Lowlands province, which in turn is part of the Interior Plains physiographic division of the United States, located in southern and western Iowa, northeastern Kansas, the southwestern corner of Minnesota, northern Missouri, eastern ...
The Ashfall Fossil Beds of Antelope County in northeastern Nebraska are rare fossil sites of the type called lagerstätten that, due to extraordinary local conditions, capture an ecological "snapshot" in time of a range of well-preserved fossilized organisms.
The United States remains virtually the only developed country in the world without a standardized civilian topographic map series in the standard 1:25,000 or 1:50,000 metric scales, making coordination difficult in border regions (the U.S. military does issue 1:50,000 scale topo maps of the continental United States, though only for use by ...
The former Sioux Ordnance Depot in Cheyenne County was the site of 70% of federal oil production from the Derrick, Table and Ehmke fields. [6] Of the 2,817 active oil and gas wells in the state on January 1, 2016, the Nebraska Oil and Gas Conservation Commission found that only two used hydraulic fracturing. [7]
The site is best known for a large number of well-preserved Miocene fossils, many of which were found at dig sites on Carnegie and University Hills.Fossils from the Harrison Formation and Anderson Ranch Formation, which date to the Arikareean in the North American land mammal classification, about 20 to 16.3 million years ago, are among some of the best specimens of Miocene mammals.
The National Map Corps consists of volunteers who devote some of their time to provide cartographic information to the U.S. Geological Survey. The only requirements to participate are having access to the Internet and a current familiarity with the area being mapped. [6] This data is used to update The National Map.
The White River is a Missouri River tributary that flows 580 miles (930 km) [3] through the U.S. states of Nebraska and South Dakota.The name stems from the water's white-gray color, a function of eroded sand, clay, and volcanic ash carried by the river [5] from its source near the Badlands. [6]