TY  - RPRT
TI  - The National Map - Elevation
AU  - Dean Gesch
AU  - Gayla Evans
AU  - James Mauck
AU  - John Hutchinson
AU  - William J. Carswell
PY  - 2009
DO  - 10.3133/fs20093053
UR  - https://pubs.usgs.gov/publication/fs20093053
ID  - fs20093053
ER  -