CRYSTAL PARK, Mont. — Molten granite formed the Pioneer Mountain Range in southwest Montana about 72-million years ago. As the granite cooled, water carried quartz and other minerals through the ...

We were on a family outing at Crystal Park, Montana, and moving dirt — looking for quartz crystals instead of gold — was what we were all about. But like gold mining, ...

Alternatively, I always suggest friends head to southwest Montana where you can spend a weekend in Crystal Park, a site the Forest Service has reserved specifically for digging up stones, rocks ...