Key Takeaway

Lamonta is a intermittent surface mine producing Stone, located in PRINEVILLE, Crook County, OR. It has 103 violations on record (17 S&S) and $45K in proposed penalties. Operated by Knife River Corporation- Northwest.

Lamonta

Intermittent Surface Stone

Operator: Knife River Corporation- Northwest

Controller: Knife River Corporation

Location: PRINEVILLE, Crook County, OR

Employees: 6

103
Violations
17
S&S Violations
0
Accidents
$45K
Penalties

Recent Violations

View all 103 →
Date Section S&S Negligence Penalty
05/14/2024 56.14100(b) Non-S&S ModNegligence $172
05/14/2024 56.14200 S&S ModNegligence $2,862
12/06/2023 56.14100(b) Non-S&S ModNegligence $252
12/06/2023 56.12032 S&S ModNegligence $2,772
12/06/2023 56.4201(a)(2) Non-S&S ModNegligence $167
12/06/2023 56.14112(b) Non-S&S ModNegligence $558
04/18/2023 56.14105 Non-S&S ModNegligence $143
04/18/2023 56.12013 Non-S&S LowNegligence $198
04/18/2023 56.14112(b) Non-S&S ModNegligence $198
04/18/2023 56.18002(a) Non-S&S HighNegligence $1,463
03/07/2023 56.14107(a) Non-S&S ModNegligence $252
03/07/2023 56.4104(b) Non-S&S ModNegligence $167
03/02/2023 56.12004 S&S ModNegligence $2,772
03/02/2023 56.12004 S&S ModNegligence $2,772
03/02/2023 56.12004 Non-S&S ModNegligence $558
03/02/2023 56.12004 S&S ModNegligence $2,772
03/02/2023 56.4201(a)(2) Non-S&S ModNegligence $167
03/02/2023 56.11001 Non-S&S ModNegligence $252
03/02/2023 56.14100(a) Non-S&S ModNegligence $252
03/01/2023 56.20003(c) S&S ModNegligence $834

Inspections

View all 37 →
Begin End Hours Inspectors
05/28/2025 05/29/2025 6.00 1
11/13/2024 11/15/2024 8.00 1
05/14/2024 05/16/2024 16.25 1
12/06/2023 12/06/2023 7.75 1
06/20/2023 06/22/2023 15.50 1
05/17/2023 05/17/2023 1.75 1
04/17/2023 04/19/2023 13.00 2
03/29/2023 03/29/2023 3.25 1
03/01/2023 03/08/2023 34.25 1
06/13/2022 06/16/2022 22.50 1

Mine Details

MSHA Mine ID3503648
Mine TypeSurface
StatusIntermittent
CommodityStone
SIC DescriptionCrushed, Broken Stone NEC
Employees6
Days/Week5.0
Hours/Shift10.0
Coordinates44.3227780, -120.8719440
Nearest TownPRINEVILLE

Related Mines

Farmington Pit
Beaverton, Washington County, OR
265 violations Active
VIESKO PIT AND PLANT
Brooks, Marion County, OR
236 violations Abandoned
REED PIT
tangent, Marion County, OR
206 violations Active
KIRTLAND
Medford, Jackson County, OR
181 violations Active
Kalama Quarry
Castle Rock, Cowlitz County, WA
161 violations Abandoned
METRO PORTABLE #5
Brightwood, Clackamas County, OR
157 violations Abandoned
METRO PORTABLE #1
Deer Island, Columbia County, OR
155 violations Intermittent
Crusher #2
Prineville, Crook County, OR
146 violations Abandoned

Frequently Asked Questions

How many MSHA violations does Lamonta have?

Lamonta has 103 MSHA violations on record, of which 17 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $45K.

What type of mine is Lamonta?

Lamonta is a Surface mine producing Stone, located in PRINEVILLE, Crook County, OR. It currently has 6 employees.

Has anyone been injured or killed at Lamonta?

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

Who operates Lamonta?

Lamonta is operated by Knife River Corporation- Northwest and controlled by Knife River Corporation. MSHA Mine ID: 3503648.