National High Altitude Photography

The National High Altitude Photography (NHAP) program, which was operated from 1980 - 1989, was coordinated by the U.S. Geological Survey as an interagency project to eliminate duplicate photography in various Government programs. The aim of the program was to cover the 48 conterminous states of the USA over a 5-year span. In the NHAP program, black-and-white and color-infrared aerial photographs were obtained on 9-inch film from an altitude of 40,000 feet above mean terrain elevation and are centered over USGS 7.5-minute quadrangles. The color-infrared photographs are at a scale of 1:58,000 (1 inch equals about .9 miles) and the black-and-white photographs are at a scale of 1:80,000 (1 inch equals about 1.26 miles).

Data and Resources

Additional Info

Field Value
Maintainer EROS CENTER
Last Updated March 31, 2025, 21:57 (UTC)
Created March 31, 2025, 21:57 (UTC)
accessLevel public
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citation U.S. Geological Survey (USGS) EROS Data Center (EDC). 1980-01-01. National High Altitude Photography. Sioux Falls, SD USA. Archived by National Aeronautics and Space Administration, U.S. Government, U.S. Geological Survey. http://earthexplorer.usgs.gov. Photographs.
creator U.S. Geological Survey (USGS) EROS Data Center (EDC)
data-presentation-form Photographs
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harvest_source_title DNG Legacy Data
identifier C1220566467-USGS_LTA
issued 2019-09-20
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1220566467-USGS_LTA.html
language {en-US}
metadata_type geospatial
modified 2019-03-25
programCode {026:001}
publisher DOI/USGS/EROS
release-place Sioux Falls, SD USA
resource-type Dataset
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spatial -180.0 -90.0 180.0 90.0
temporal 1970-01-01T00:00:00Z/2022-01-17T00:00:00Z
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