Geology of the Conterminous United States at 1:2,500,000 Scale -- A Digital Representation of the 1974 P.B. King and H.M. Beikman Map

This CD-ROM contains a digital version of the Geologic Map of the
United States, originally published at a scale of 1:2,500,000 (King
and Beikman, 1974b). It excludes Alaska and Hawaii. In addition to
the graphical formats, the map key is included in ASCII text.
A geographic information system (GIS) allows combining and
overlaying of layers for analysis of spatial relations not readily
apparent in the standard paper publication. This disc contains only
geology. However, digital data on geology, geophysics, and
geochemistry can be combined to create useful derivative products--
for example, see Phillips and others (1993).
This CD-ROM contains a copy of the text and figures from
Professional Paper 901 by King and Beikman (1974a). This text
describes the historical background of the map, details of the
compilation process, and limitations to interpretation. The digital
version of the text can be searched for keywords or phrases.