Describes: geologic maps and their use as a fundamental data base, a rigorous benefit-cost model for valuing geologic map information, and the economic issues a

An economic analysis by the US Geological Survey's National Geologic Mapping Program that describes (1) geologic maps and their use as a fundamental data base,

Geologic maps: a few lucky geologists make them; many geoscientists, engineers, and planners use them; untold scores of people wonder what they are all about. P