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Crystal hunting: where to dig quartz crystals in the US

Updated . Sources are at the end of the page.

Public and pay-to-dig sites

For quartz crystals, Arkansas is the place: a crystal belt runs west from Little Rock, with a free public site in the Ouachita National Forest and pay-to-dig mines nearby. In New York, Herkimer mines sell day passes to dig double-pointed “Herkimer diamonds”, and in the West, BLM Arizona lists quartz crystals on its public land.

Best-known area
Arkansas quartz belt, around Mount Ida and Jessieville
Public site
Crystal Vista, Ouachita National Forest
Pay-to-dig
Ron Coleman Mining (Arkansas), Herkimer Diamond Mines (New York)
In our states
Quartz crystals on BLM land in Arizona

Arkansas quartz

According to the Arkansas Geological Survey, Arkansas quartz veins formed when hot water filled open fissures during the closing stages of mountain building, some 280 to 245 million years ago. The crystal belt is about 30 to 40 miles wide and runs about 170 miles west-southwest from Little Rock into eastern Oklahoma, and most collectible crystal comes from the Blakely and Crystal Mountain sandstones. Milky quartz differs from clear rock crystal only by countless microscopic fluid-filled bubbles. Quartz crystal is Arkansas’s official state mineral.

Crystal Vista, Ouachita National Forest

  • What it is: a 4-acre former commercial crystal mine high on Gardner Mountain, where the Forest Service says quartz crystals can be easily collected from the ground surface.
  • Getting there: from Mount Ida, drive south on Highway 27 for 3.8 miles, turn left on county road 2237 (Owley Road) and continue 4.1 miles to the Crystal Vista trailhead.
  • Rules and fees: we could not open the Forest Service’s current rules page. Call the Caddo-Womble Ranger District, 870-867-2101, before you go.

Pay-to-dig mines

  • Ron Coleman Mining, Jessieville: keep everything you find, no reservation required, digging from 8 am to 4:30 pm; 211 Crystal Ridge Lane, 501-984-5396. Its website does not list fees.
  • More mines: the Arkansas Geological Survey’s 2008 brochure lists fee mines around Mount Ida, Jessieville, Royal, Pencil Bluff and Paron. Its fees date from 2005, so check which mines are open and what they charge.

Herkimer “diamonds”, New York

Herkimer diamonds are not diamonds but quartz crystals that grew in cavities in Cambrian dolostone. At Herkimer Diamond Mines, the 2026 season runs from April 12 to October 31, 9 am to 5 pm every day, with no reservations needed.

  • Admission: $19 for ages 13 and up and $16 for ages 5 to 12, plus $3 and $2 on Fridays, Saturdays and Sundays. It includes an all-day ticket, collection bags and use of a rock hammer.
  • Tools: nothing over 12 pounds and no powered equipment. Eye protection is highly recommended.
A slab of gray dolostone with a cavity holding clear, double-pointed quartz crystals
Herkimer “diamonds”: quartz crystals in a cavity in dolostone, from Middleville, New York. Photo: James St. John, CC BY 2.0.

Quartz crystals on BLM land in Arizona

BLM Arizona lists quartz crystals among the specimens found on its public land, on land of the Hassayampa and Yuma field offices. It names no specific site, so check for mining claims first.

  • Personal use: reasonable amounts for noncommercial purposes; BLM Arizona sets up to 25 pounds a day and 250 pounds a year.
  • Hand tools: no motorized or mechanical devices, heavy equipment or explosives.
  • Not on State Trust Land: rockhounding is not allowed there.

Stay safe

  • Never enter old mines. The BLM warns of cave-ins, falls and bad air in abandoned mines.
  • Mind the walls of your pit. Soft ground can collapse at any time, and BLM guidance limits digging to four feet deep.
  • Fill in your holes when you are done.

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Questions

Where can I go crystal hunting in the US?

Arkansas is the best-known place for quartz crystals: the Forest Service’s Crystal Vista site near Mount Ida lets you pick crystals from the surface of a former mine, and pay-to-dig mines such as Ron Coleman Mining operate nearby. Herkimer, New York, has pay-to-dig sites for “Herkimer diamonds”, and BLM Arizona lists quartz crystals on its Hassayampa and Yuma field office land.

Is there free crystal hunting in Arkansas?

Crystal Vista in the Ouachita National Forest is a public site where quartz crystals can be collected from the ground surface of a 4-acre former mine. Check the current rules and any fees with the Caddo-Womble Ranger District, 870-867-2101, before you go.

How much does it cost to dig Herkimer diamonds?

At Herkimer Diamond Mines, admission is $19 for ages 13 and up and $16 for ages 5–12, plus $3 and $2 on Fridays to Sundays. The fee includes an all-day ticket, collection bags and use of a rock hammer.

When can you dig at Herkimer Diamond Mines in 2026?

From April 12 to October 31, 2026, 9 am to 5 pm seven days a week, with no reservation needed.

How did Arkansas quartz crystals form?

Hot water filled open fissures in the rock during the closing stages of mountain building, some 280 to 245 million years ago, according to the Arkansas Geological Survey.

What tools can I use?

It depends on the site. Herkimer Diamond Mines bans tools over 12 pounds and powered equipment and recommends eye protection; on BLM land in Arizona, no motorized or mechanical devices or explosives may be used.

Is it safe to go into old mines?

No. The BLM says abandoned mines can hold cave-ins, falls and bad air, and that you should not enter them under any circumstances.

Sources

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