Geology and Resource Assessment of the Venezuelan Guayana Shield at 1:500,000 Scale
A Digital Representation of Maps Published by the U.S. Geological SurveyMap - 1999
"Contains vector-based digital maps of Venezuela[n] Guayana Shield originally published as paper maps in 1993 USGS Bulletin 93-2062."
Publisher: Reston, VA. : U.S. Geological Survey, 1999
Characteristics: 1 electronic map : HTML file