Source of famed Texas agates (red plume, pompom, and a rainbow of other types), colorful jasper, labradorite feldspar,
calcite, precious opal, and other minerals. Hunt and collect on more than 3,000 acres; guide service available (fee). Rough agate 50 cents per pound; grading help by ranch experts. Lapidary shop. 18 miles south of Alpine on Texas 118.