National Geospatial Program
The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and Fall.
High quality 3D elevation data are critical to flood risk management, resource management, conservation, alternative energy, agriculture, infrastructure management, and a broad range of other nationally significant applications. 3DEP is a cooperative program, managed by the USGS on behalf of the community, with the goal to complete national coverage of 3D elevation data in 8 years.
The Alaska Mapping Executive Committee (AMEC) meets regularly to coordinate on critical Alaska topographic mapping activities. Executives from 15 Federal agencies and the State of Alaska are combining efforts to acquire new digital elevation, hydrography, transportation, shoreline and geopositional data for Alaska, and create a new digital topographic map series for the State.
Would you like to learn more about USGS National Map products and services? Then welcome to the National Geospatial Program User Engagement office. We can help you leverage NGP products and services through The National Map and other venues. Connect with us through our network of National Map Liaisons. There's a liaison for every state!
The Alaska Mapping Initiative is a U.S. Geological Survey effort to generate new topographic maps of Alaska. The USGS is coordinating with the State of Alaska and multiple Federal agencies to acquire updated digital map layers such as elevation, surface water, roads, and boundaries, and to create a modern series of digital maps for Alaska using these updated layers.
The USGS took over responsibility for mapping the country in 1879 and has been the primary civilian mapping agency of the United States ever since. The best known USGS maps are the 1:24,000-scale topographic maps, also known as 7.5-minute quadrangles. More than 55,000 7.5-minute maps were made to cover the 48 conterminous States.
The National Map is a collaborative effort among the USGS and other Federal, State, and local partners to improve and deliver topographic information for the Nation. It has many uses ranging from recreation to scientific analysis to emergency response. The National Map is easily accessible for display on the Web, as products and services, and as downloadable data.
This U.S. Geological Survey project consists of two primary studies about long-term land-cover change in the Delaware River Basin, particularly in Pennsylvania. The objectives for these projects were to address and quantify predominant affects and outcomes of land-surface change in urbanizing areas.
The U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) provides leadership and world-class technical expertise in the acquisition and management of trusted geospatial data, services, and map products for the Nation. NGTOC supports The National Map as part of the National Geospatial Program.
U.S. Geological Survey: a History of the National Program for Topographic Mapping (1884–2009) Topographic maps became a signature product of the USGS because the public found them - then and now - to be a critical and versatile tool for viewing the nation's vast landscape.
Standards and specifications are essential to facilitate the development and sharing of geospatial data and products. The USGS standards and specifications define the requirements to ensure that all products and data prepared by the USGS under the National Geospatial Program are consistent in accuracy, structure, format, style, and content.
The Geographic Names Information System (GNIS) is the Federal standard for geographic names. The U.S. Geological Survey developed the GNIS in support of the U.S. Board on Geographic Names as the official repository of domestic geographic names for the Federal Government, and the source for applying geographic names to Federal electronic and printed products.