U.S. Geological Survey

Maps available for downloading:

File name

Zipped size (mb)

Unzipped size (mb)

projection

cell size

shading

scale

us15a300m.zip

36

146

Albers meters

300m

multi-dir

500k

us15a300s.zip

35

146

Albers meters

300m

single-dir

500k

us15a400s.zip

20

82

Albers meters

400m

single-dir

600k

us15a468m.zip

15

60

Albers meters

468m

multi-dir

750k

us15g280m.zip

51

182

decimal degrees

10" 200-280m

multi-dir

500k

us15g420m.zip

26

80

decimal degrees

15" 300-420m

multi-dir

750k

se15g420s.zip

4

44

decimal degrees

15" 300-420m

single-dir

750k

Other files available for downloading:

color_comparo.bmp

comparison of coloring techniques

geo2alb.prj

projection parameter file for US Albers meters

nearest_bilinear_cubic.bmp

shows effects of 3 resampling techniques

resolution_comparo.bmp

shows same source map at different resolutions

us.rmp

remap file for 10 elevation classes

us.cmp

rgb color map for 10 elevation classes

Webring_ascii.zip

58mb DEM source data converted to GRID-compatible ASCII
Updated 06.11.02

dem15sec.zip

50.5mb ESRI GRID format, clipped at US border. Expands to 75mb.


Return to
Color Shaded Relief Map of the Conterminous United States


This page is https://pubs.usgs.gov/openfile/of99-011/online.html
Contact:
Paul Schruben

Maintained by Eastern Publications Group
Last revised 03-07-02 by John Watson