In accordance with NASA policy, the USGS Earth Resources Observation and Science (EROS) Center hosts and distributes SRTM data via The National Map Seamless Server, and Earth Explorer.

See Quick Steps for Obtaining Seamless Data (recommended) or go directly to the The National Map Seamless Server.

1-arc second (30 meter) SRTM data postings of the continental United States and 3 arc second (90 meter) international continental datasets can now be obtained in two ways via the The National Map Seamless Server or Earth Explorer.

For assistance or additional information on The National Map Seamlss Server please contact Customer Services at:

Customer Services
U.S. Geological Survey
The Earth Resources Observation and Science (EROS) Center
47914 252nd Street
Sioux Falls, SD 57198-0001

Tel: 800-252-4547
Tel: 605-594-6151
Fax: 605-594-6589
Email: custserv@usgs.gov