1991
By: Gail P. Thelin and Richard J. Pike
Download the full sheet in tiff image format: usa_shade.tif (6096x3800 pixels; about 13"x20" at 300 dpi; 11.8 MB using no compression)
Download the full sheet in PDF format: usa_shade.pdf (6096x3800 pixels; about 13"x20" at 300 dpi; 2.9 MB using JPG-8 compression)
Download the accompanying pamphlet: i2206_pamphlet.pdf (16 pages; 7 MB [this file consists of scans of the printed paper version])
See the geology added to this map, Geologic Investigations Series I 2720
Return to Western Region Geologic Information Home Page
The URL for this page is: http/pubs.usgs.gov/imap/i2206/