Olentangy Caverns Gem Mining

Gemstones

Also found at:

• Jackpot Mine at Discovery Depot
• River Bend Mining / Lucky Strike Mine
• Showcase of Citrus Gem Mining

Emeralds

North Carolina's Hiddenite region is the only place in North America where emeralds are found naturally.

Also found at:

• Showcase of Citrus Gem Mining
• Boggy Creek Fossil & Gem Mine
• Sugar Creek Gem Mine

Fossils

From shark teeth in Florida to dinosaurs in Montana, the US offers world-class fossil hunting for all skill levels.

Also found at:

• Alabama Gold Camp
• Black Warrior River Sites
• Cathedral Caverns State Park - Gem Mining

Arrowheads

Also found at:

• Showcase of Citrus Gem Mining
• Natural Bridge Caverns Mining Co.
• Ohio Caverns Gem Mining

Amethyst

Purple quartz crystals found in geodes and pegmatites. Notable sources include Georgia, North Carolina, Pennsylvania, and Maine.

Also found at:

• Four Peaks Amethyst Mine
• Crater of Diamonds State Park
• Lyman Orchards Gem Mining

Quartz Crystals

Clear, smoky, and rose quartz crystals are among the most common and rewarding rockhounding finds. Arkansas produces world-class quartz.

Also found at:

• Lake Martin Rockhounding Area
• M & G Mine
• Horseshoe Mine

Ohio Flint Ridge

Brownsville, Ohio · State Park

Flint Ridge State Memorial — Ohio flint is legendary among knappers. Beautiful rainbow-colored flint in many varieties. Surface collecting permitted.

Ohio Trilobite Exposures

Sylvania, Ohio · Public Land

Road cuts and exposures in northwest Ohio for Devonian trilobites, brachiopods, and other Paleozoic fossils.

Ohio Geode Beds

Tiffin, Ohio · Public Land

North-central Ohio creek beds and exposures for geodes and calcite crystals. Part of the Findlay Arch mineral district.

Vanport Flint Quarries

Zaleski, Ohio · Public Land

Ancient quarry sites in Vinton County used by Native Americans for high-quality Vanport flint. Part of the Ohio Flint Ridge region. Excellent for knap...

Ohio Caverns Gem Mining

West Liberty, Ohio · Fee Dig

Year-round gem mining at Ohio Caverns. Purchase bags of mining rough seeded with gemstones, emeralds, minerals, fossils, or arrowheads. Use outdoor sl...

Seneca Caverns Gem Mining

Bellevue, Ohio · Fee Dig

Gem mining at Seneca Caverns in Bellevue, OH. Seneca Mining Company offers sluice mining for gems, minerals, and fossils. Seasonal hours: May (Sat-Sun...