The Digital Geologic Map of Wyoming in ARC/INFO Format

This geologic map was prepared as part of a study of digital methods
and techniques as applied to complex geologic maps. The geologic
map was digitized from the original scribe sheets used to prepare
the published Geologic Map of Wyoming (Love and Christiansen, 1985).
Consequently, the digital version is at 1:500,000 scale using the
Lambert Conformal Conic map projection parameters of the State base
map. Stable base contact prints of the scribe sheets were scanned
on a Tektronix 4991 digital scanner. The scanner automatically
converts the scanned image to an ASCII vector format. These
vectors were transferred to a VAX minicomputer, where they were then
loaded into ARC/INFO. Each vector and polygon was given attributes
derived from the original 1985 geologic map.