# Crystal Park: legal collecting field guide

Canonical page: https://lithomap.app/resources/field-trips/crystal-park-montana
Last access and rule review: September 18, 2026
Page purpose: Original LithoMap trip-planning reference for an explicitly authorized rock, mineral, or non-dinosaur fossil collecting destination.

## Direct answer

A Forest Service day-use mineral collection area with about 30 acres of designated quartz-crystal digging ground and a seasonal host.

## Location and material

- State: Montana
- Area: Pioneer Mountains near Wise River
- Category: Mineral collecting
- Collection status: Collecting allowed
- Expected material: Quartz crystals, Smoky quartz, Amethyst

## Authorization

The Beaverhead-Deerlodge National Forest expressly permits hand digging inside the posted Crystal Park collection area after payment of the current recreation fee.

## Access

Paved routes reach the parking area, followed by a short walk. The site provides toilets, picnic facilities, a hand-pump well, and an accessible trail, but overnight camping is not allowed at Crystal Park.

## Tools, limits, and season

- Tools: Hand tools only. No tunneling, unsafe holes, overhanging banks, digging beneath trees, or excavation within five feet of trails, parking, signs, toilets, fences, and other facilities.
- Limits: No commercial digging. The Forest Service limits digging to five days per person per season; current posted rules and fees control.
- Season and current status: Normally open from late May through late October, sunrise to sunset, depending on snow and road conditions.

## Conditions

- Pay the current day-use fee.
- Dig only inside the kiosk-mapped area.
- Keep excavations stable and free of overhangs.
- Keep dogs leashed and pack out all waste.

## Geology

Quartz crystallized in veins and cavities as the Pioneer Batholith cooled roughly 72 million years ago.

Weathering later freed clear, milky, smoky, and occasionally purple quartz from the granite.

## Field plan

1. Confirm the seasonal opening with the Dillon Ranger District.
2. Read the kiosk map before choosing a spot.
3. Trace weathered vein material without undercutting.
4. Protect sharp crystal points during packing.
5. Leave the excavation stable.

## Safety

- Never occupy an unsafe hole or tunnel.
- Place loose rocks away from excavation edges.
- Expect rapidly changing mountain weather.

## Official sources

- Crystal Park visitor brochure and rules — U.S. Forest Service: https://www.fs.usda.gov/media/44164

This guide is not a permit, reservation, boundary survey, legal opinion, guarantee of access, or promise of a find. Open every official source again before travel. Current signs, closures, permits, claim boundaries, and staff instructions control.