Plan Your Trip To The Mine

Make a reservation for your party below.

Note: Reservations are for the Mine location on Highway 38! 

Know Before You Go:

This page is 100% dedicated to the Gem Mountain Sapphire Mine location on Highway 38, 22 miles from Philipsburg. If you would like to learn more about our downtown Philipsburg location, click here.

The Mine will be open Wednesday – Saturday beginning May 25th through September 3rd. A reservation is required to visit the Mine location.


Gem Mountain provides all of the equipment you need to find your own Montana sapphires. Our fantastic team will show you how to wash the gravel and find sapphires.

Gravel Bucket Quantities

Single Bucket

For first time visitors, a single bucket will take one person approximately 45 minutes wash.

For returning customers or those with some experience, a single bucket will take one person approximately 20 to 30 minutes to wash.

If sharing one bucket sounds like your cup of tea, a single bucket of gravel fills the screening tool 3 to 4 times. Sharing with one person will take you each about 20 minutes. 

Lucky 7

Lucky 7 is perfect for any one person who is planning to wash more than a couple of buckets of gravel and is ready to spend a good part of the day with us at Gem Mountain.

This is also a great amount of gravel for a family or small group that would like to wash more than one bucket each.

Lucky 7 is a great value. You are paying for six single buckets, and the 7th is free!


Book Your Gem Mountain Mine Visit

Please use the calendar below to create your Reservation.

You may not know if your group will be interested in a Single Bucket or a Lucky 7. Please make your best estimate and we will do our best to accommodate any additional gravel needs when you arrive.

The $40 Reservation prepays for your first gravel bucket and reserves your equipment.

Reservations are 100% refundable if cancelled more than 7 days in advance.

New this year: we’ve added two VIP sections which are great for large groups, parties, and more privacy. Learn more about our VIP Reservations here.


From: $40.00

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Two Lost Treasure Bags


Save on shipping by purchasing two Lost Treasure Bags!! Lost Treasure Bags are guaranteed to contain sapphires. They have approximately 100 carats worth of sapphires. They are sapphire concentrate that are guaranteed to contain sapphires. Lost Treasure Bags may contain garnets, pyrite, and pseudomorphs. No washing is required for the Lost Treasure Bags.

In stock

SKU: GRTB-1 Category:

Additional information


Single Bucket, Lucky 7


Mine Location

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

Year-Round Phone: (406) 859-GEMS (4367)

Mine Phone: (406) 859-MINE (6463)