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Online collection of all digital USGS 1:24K scale topographic maps (as well as various other GIS data) covering the United States, available as a free download. NPScape United States Department of the Interior National Park Service NPScape is a landscape dynamics monitoring project that provides landscape-level data, tools, and evaluations for ...
The largest national park is Wrangell–St. Elias in Alaska: at over 8 million acres (32,375 km 2), it is larger than each of the nine smallest states. The next three largest parks are also in Alaska. The smallest park is Gateway Arch National Park, Missouri, at 192.83 acres (0.7804 km 2).
National Park System units are found in all 50 states, the District of Columbia, and the U.S. territories of Guam, American Samoa, the U.S. Virgin Islands, and Puerto Rico. The territory of the Northern Mariana Islands has an affiliated area but not an official NPS unit.
The Official Units of the National Park System of the United States is the collection of physical properties owned or administered by the National Park Service. As of August 2024, there are 431 official units of the National Park System; [1] however, this number can be misleading. For example, Denali National Park and Preserve are counted as ...
Skyline Drive map and profile – Skyline Drive runs the length of Shenandoah. PCT Elevation Profiles – The Pacific Crest Trail goes through seven national parks. North Cascades – Washington section K. Mount Rainier – Washington section I. Crater Lake – Oregon section C. Lassen Volcanic – California section N.
The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural hazards ...
White Sands National Park is a national park of the United States located in New Mexico and completely surrounded by the White Sands Missile Range.The park covers 145,762 acres (227.8 sq mi; 589.9 km 2) in the Tularosa Basin, including the southern 41% of a 275 sq mi (710 km 2) field of white sand dunes composed of gypsum crystals.
A geographic information system (GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. [ 1 ][ 2 ] Much of this often happens within a spatial database; however, this is not essential to meet the definition of a GIS. [ 1 ] In a broader sense, one may consider such a ...