Digital representation of a map showing the thickness and character of Quaternary sediments in the glaciated United States east of the Rocky Mountains
Contains vector-based digital geologic maps of surficial deposits in parts of 23 states where continental glaciation occurred during Quaternary. Map compilation was based on about 850 sources.
|Main Author:||Geological Survey (U.S.)|
|Other Authors:||Soller, D. R., Packard, Patricia H.|
[Reston, VA] : [Denver, CO] :
The Survey ; [For sale by the Survey],
1 computer optical disc ; 4 3/4 in.
Also available via Internet from USGS Web site. Address as of 1/25/02: http://pubs.usgs.gov/dds/dds38; current access is available via PURL.
U.S. Geological Survey digital data series ;