Data / Mines / Nevada / Lone Tree Mine
Lone Tree Mine, Humboldt County, Nevada: 10 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Lone Tree Mine is an active gold ore surface mine in Humboldt County, Nevada, operated by Goldcorp Dee LLC with 52 employees on MSHA's record (mine ID 2602159). Since January 1, 2022 MSHA inspectors issued 10 citations and orders there with $1,402 in proposed penalties, and 6 accident reports were filed there, with 6 injury or illness cases.
The request: Watch Lone Tree Mine (MSHA mine ID 2602159) in Humboldt County, Nevada: each new citation and each accident report. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA mine ID
- 2602159
- Status
- Active since December 7, 2011
- Main commodity
- Gold ore
- Mine type
- Surface
- County
- Humboldt County, Nevada
- Nearest town
- Valmy
- Operator
- Goldcorp Dee LLC
- Parent company
- I-80 Gold Corp
- Employees
- 52
- MSHA field office
- Elko NV Field Office
- Citations and orders since January 1, 2022
- 10
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $1,402
- Amount paid so far
- $1,402
- Inspections
- 12
- Inspector hours on site
- 88
- Citations per inspection
- 0.83 (all mines 2.30)
- Accident reports
- 6
- Injury and illness cases
- 6
- Fatalities
- 0
- Latest MSHA record
- October 31, 2026
- Citations issued to contractors here
- 2 ($302 proposed)
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 6 | 0 | $798 | 1 |
| 2023 | 0 | 0 | $0 | 1 |
| 2024 | 0 | 0 | $0 | 1 |
| 2025 | 1 | 0 | $151 | 1 |
| 2026 | 3 | 0 | $453 | 2 |
Standards cited most at Lone Tree Mine
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.15020 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 1 |
| 30 CFR 47.41 | Hazard communication | 1 |
Injury and illness cases at Lone Tree Mine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
| No lost time, or an occupational illness | 5 |
What the accident reports at Lone Tree Mine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 2 |
| Handtools (nonpowered) | 2 |
| Machinery | 1 |
| Exploding vessels under pressure | 1 |
Equipment named in accident reports at Lone Tree Mine
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 2 |
| Hand tools (powered) | 1 |
| Air compressor | 1 |
Other open mines in Humboldt County, Nevada
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Turquoise Ridge | Nevada Gold Mines LLC | Humboldt County, NV | Gold ore | 455 | 848 |
| Marigold Mine | Marigold Mining Co | Humboldt County, NV | Gold ore | 304 | 109 |
| Twin Creeks Mine | Nevada Gold Mines LLC | Humboldt County, NV | Gold ore | 450 | 102 |
| Granite Creek Mine | Osgood Mining Company, LLC | Humboldt County, NV | Gold ore | 125 | 26 |
| Twin Underground | Nevada Gold Mines LLC | Humboldt County, NV | Gold ore | 8 | 22 |
| Min-Ad Inc | Min-Ad Inc | Humboldt County, NV | Crushed, broken limestone | 13 | 11 |
| Hwy 95 Pit | Nevada Building Supply LLC | Humboldt County, NV | Sand, common | 2 | 10 |
| Portable Crusher #2 (P-450) | Bolinder Resources | Humboldt County, NV | Construction sand and gravel | 2 | 9 |
| Hycroft Mine | Hycroft Resources & Development, LLC | Humboldt County, NV | Gold ore | 440 | 7 |
| Thacker Pass | Lithium Nevada Corp. | Humboldt County, NV | Lithium minerals | 50 | 6 |
| Finlay 696 | Nevada Building Supply LLC | Humboldt County, NV | Sand, common | 3 | 6 |
| Portable 1 | Bolinder Resources | Humboldt County, NV | Construction sand and gravel | 3 | 6 |
| Kolberg 1822PH Washplant S/N406286 | H E Hunewill Construction Company Inc | Humboldt County, NV | Sand, common | 1 | 5 |
| Stall Ranch Pit | Nevada Building Supply LLC | Humboldt County, NV | Construction sand and gravel | 4 | 4 |
| Terex Cedar Rapids MVP380 | H E Hunewill Construction Company Inc | Humboldt County, NV | Construction sand and gravel | 5 | 3 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.