Key Takeaway

Gem Mountain is a intermittent surface mine producing Nonmetal, located in Philipsburg, Granite County, MT. It has 20 violations on record (5 S&S) and $3K in proposed penalties. Operated by Potentate Mining LLC.

Gem Mountain

Intermittent Surface Nonmetal

Operator: Potentate Mining LLC

Controller: Keith Barron

Location: Philipsburg, Granite County, MT

Employees: 12

20
Violations
5
S&S Violations
0
Accidents
$3K
Penalties

Recent Violations

View all 20 →
Date Section S&S Negligence Penalty
10/02/2025 56.20013 Non-S&S ModNegligence $151
10/02/2025 56.20003(a) Non-S&S ModNegligence $151
10/02/2025 56.14112(b) S&S ModNegligence $151
10/02/2025 56.12028 Non-S&S ModNegligence $151
10/02/2025 56.14100(b) Non-S&S ModNegligence $151
10/02/2025 56.14112(b) Non-S&S ModNegligence $151
06/12/2024 56.1000 Non-S&S ModNegligence $147
07/27/2023 56.12018 Non-S&S ModNegligence $143
06/23/2022 56.14211(c) S&S ModNegligence $378
06/17/2021 56.12008 Non-S&S LowNegligence $125
06/17/2021 56.14107(a) Non-S&S LowNegligence $125
06/23/2020 56.14107(a) Non-S&S ModNegligence $123
06/23/2020 56.4402 Non-S&S ModNegligence $123
06/16/2020 56.14107(a) S&S ModNegligence $157
06/16/2020 56.9300(a) S&S ModNegligence $123
08/07/2019 56.14100(b) Non-S&S LowNegligence $121
08/08/2018 56.9100(a) S&S ModNegligence $118
08/08/2018 56.4201(a)(2) Non-S&S ModNegligence $118
08/08/2018 56.14101(a)(3) Non-S&S ModNegligence $118
08/08/2018 48.26 Non-S&S ModNegligence $132

Inspections

View all 13 →
Begin End Hours Inspectors
10/01/2025 10/06/2025 36.50 1
06/04/2025 06/05/2025 10.00 1
06/10/2024 06/12/2024 9.50 1
07/24/2023 07/28/2023 12.50 1
06/23/2022 06/23/2022 11.75 1
06/25/2021 06/25/2021 7.00 1
06/16/2021 06/17/2021 7.75 1
06/16/2020 06/23/2020 30.50 1
09/24/2019 09/26/2019 19.75 1
09/03/2019 09/03/2019 15.75 1

Mine Details

MSHA Mine ID2402696
Mine TypeSurface
StatusIntermittent
CommodityNonmetal
SIC DescriptionSapphire
Employees12
Days/Week5.0
Hours/Shift8.0
Coordinates46.3325000, -113.2944440
Nearest TownPhilipsburg

Frequently Asked Questions

How many MSHA violations does Gem Mountain have?

Gem Mountain has 20 MSHA violations on record, of which 5 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $3K.

What type of mine is Gem Mountain?

Gem Mountain is a Surface mine producing Nonmetal, located in Philipsburg, Granite County, MT. It currently has 12 employees.

Has anyone been injured or killed at Gem Mountain?

According to MSHA records, Gem Mountain has 0 reported accident/injury records and 0 fatalities on file.

Who operates Gem Mountain?

Gem Mountain is operated by Potentate Mining LLC and controlled by Keith Barron. MSHA Mine ID: 2402696.