Treasure hunters can find jade at Big Sur, California; geodes at Rockhound State Park in Deming, New Mexico; opals at the Bonanza Opal Mine in Denio, Nevada and the Juniper Ridge Opal Mine in Lakeview, Oregon; and emeralds in Emerald Hollow Mine in Hiddenite, North Carolina. Visitors to Crater of Diamonds State Park in Murfreesboro, Arkansas can collect diamonds and have them appraised in the park's visitor center.
Roaring Camp is an gold rush mining town in California where visitors can still mine for gold.
Writer Forest Fenn claims to have hidden a chest filled with gold coins and other valuables in the mountains north of Santa Fe, New Mexico, leaving clues in a poem in his autobiography. Regis Hauser and Michel Becker created the Golden Owl Quest in 1993, hiding a bronze owl statue somewhere in France. The Money Pit on Oak Island in Nova Scotia has drawn treasure hunters for over 200 years, although many critics consider it to be a natural sinkhole rather than a human-made structure. Treasure hunters can find dinosaur fossils at Devil Hills, South Dakota.
The United States Treasure Atlas is a 10-volume set of books containing treasure leads for each state. TreasureNet is a website community for treasure hunters.