Home News National Atlas delivers million-scale digital map data

National Atlas delivers million-scale digital map data

Vancouver, US: The new National Atlas of the US has been prepared at one million-scale (where an inch on a map is nearly 16 miles). This authoritative and integrated national dataset has twice the detail of previous versions. Users can now easily find “one” using popular search engines or portals like Data.Gov; get it as documented data or Web map services from nationalatlas.gov and other sources; and use “one” in their geospatial analysis, maps, or map mashups.

This is the first time the Federal government has ever released these basic digital map themes at 1:1,000,000-scale:
-Boundaries (national, state, and county)
-Transportation (roads, railroad, railroad stations, airports, and ports)
-Surface waters (coastlines, streams, gaging stations, waterbodies, and wetlands, all fully networked)
-Cities and towns

This new release serves as the foundation for small-scale maps and datasets on the Nation’s people, heritage, and resources. The new map data is delivered at no cost and is available on-line as a web map service from nationalatlas.gov

“For more than 130 years the USGS has been the ‘go to’ source for quality maps and authoritative map content,” said USGS Director Marcia McNutt. “The new million-scale digital series continues this proud tradition, providing users with multi-million uses only limited by their imaginations.”

By moving to one million-scale, the National Atlas achieves two goals to better serve national and international audiences. First, map features have been harmonised at the US borders of Canada and Mexico with data from national mapping programmes in those nations for use in the Environmental Atlas of North America. Also, a second edition of the data that conforms to the specifications of the Global Map is ready. Global Map is an international effort by government mapping organisations to make a consistent map of the world at one million-scale.

The National Atlas of the United States is a cooperative effort to make geographic information collected by the United States government easier to find, get, and use. Its development is led by the US Geological Survey (USGS).

Source: YubaNet