Sapphire Gravel & Mine
We mine it. You Find It.
Sapphire Gravel
Direct from the mine, 100% Natural Sapphire gravel. We Mine It…You Find It. When you purchase a bucket of Sapphire Gravel from Gem Mountain you have the exact same odds of finding that large, high value gemstone as we do at the mine. We know you will find sapphires, everyone does, but because the gravel is natural we cannot guarantee the quantity or quality of the sapphires you find. Dig in and find your own Montana Treasure, a Sapphire Gemstone from Gem Mountain.
If you’re lucky enough to visit in person, we will provide everything you need to find your own Montana Sapphires. We have the best equipment and a fantastic staff. If you can’t visit us in person we can mail you a “Box of Rocks”.




Sapphire Gravel
If you’re lucky enough to visit in person, we will provide everything you need to find your own Montana Sapphires. We have the best equipment and a fantastic staff. If you can’t visit us in person we can mail you a “Box of Rocks”.
Sapphire Mine
The Gem Mountain Sapphire Mine is one of the largest, oldest, and best Sapphire Mines in the World. You could call it the “Quiet Giant” of sapphire mines, because it has produced over 180 million carats of sapphires for over 130 years without receiving much “press”. Mining first started in 1892 with large stones exhibiting good color and clarity faceted as finished gemstones. The small and fractured stones were sold by the ounce for industrial purposes. The vast majority of early production targeted the uniform round small sapphires which were shipped to Switzerland for use as watch bearings. The invention of synthetic sapphires curtailed the large scale mining operations but did not halt sapphire mining altogether. Following WW II, an active business developed for rock hounds to visit Gem Mountain and dig for sapphires by hand.


Wash it and find it.
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Mine Location
21 Sapphire Gulch Lane
at mile marker 38.4 of Montana Highway 38, Skalkaho Pass Road, between Hamilton and Philipsburg.