Geology and resource assessment of Costa Rica at 1:500,000 scale: A digital representation of maps of the U.S. Geological Survey's 1987 folio I-1865 (U.S. Geological Survey digital data series)

Digital versions of geology and resource assessment maps originally published in 1987. Seven layers are available: geology and faults; gold mining area geology; favorable domains for selected deposit types; Bouguer gravity contours and lineaments; isostatic gravity contours; mineral deposits, prospects, and occurrences; and rock geochemistry sample points. Accompanied by MAPPER display software.