Data / Mines / Texas / Hidalgo County
Mines in Hidalgo County, Texas: 17 open mines
MSHA lists 17 open mines in Hidalgo County, Texas, run by 10 operators and employing 121 people. Since January 1, 2022 its inspectors issued 429 citations and orders there with $254,596 in proposed penalties, and operators reported 11 injury or illness cases, 2 of them fatal. The operators with the most open mines are Frontera Materials Inc; Filegonia Aggregates LLC; Capa. Data from MSHA, November 6, 2026.
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- Open mines
- 17
- Operators
- 10
- Employees
- 121
- Active
- 13
- Intermittent
- 3
- New Mine
- 1
- Mines run by individuals, counted and not listed
- 1
- Citations and orders since January 1, 2022
- 429
- Significant and substantial
- 96 (22.4%)
- Closure orders
- 11
- High negligence or reckless
- 30
- Proposed penalties
- $254,596
- Amount paid so far
- $215,838
- Inspections
- 172
- Inspector hours on site
- 1,452
- Citations per inspection
- 2.49 (all mines 2.30)
- Accident reports
- 13
- Injury and illness cases
- 11
- Fatalities
- 2
- Latest MSHA record
- October 30, 2026
Operators with the most open mines in Hidalgo County, Texas
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Frontera Materials Inc | 4 | 31 | 95 | $39,018 | 2 |
| Filegonia Aggregates LLC | 2 | 12 | 113 | $91,368 | 1 |
| Capa | 2 | 37 | 59 | $34,385 | 0 |
| Terra Firma Materials LLC | 2 | 10 | 39 | $36,183 | 8 |
| Martin Marietta Materials Southwest, LLC | 2 | 8 | 6 | $1,216 | 0 |
| Hard Rock Pit | 1 | 6 | 51 | $39,969 | 0 |
| Perales Pit LLC | 1 | 7 | 25 | $4,654 | 0 |
| Rio Grande Aggregates LLC | 1 | 4 | 8 | $1,208 | 0 |
| Iron Rock Aggregates JV | 1 | 4 | 7 | $1,057 | 0 |
Operators with the most citations in Hidalgo County, Texas
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Filegonia Aggregates LLC | 2 | 12 | 113 | $91,368 | 1 |
| Frontera Materials Inc | 4 | 31 | 95 | $39,018 | 2 |
| Capa | 2 | 37 | 59 | $34,385 | 0 |
| Hard Rock Pit | 1 | 6 | 51 | $39,969 | 0 |
| Terra Firma Materials LLC | 2 | 10 | 39 | $36,183 | 8 |
| Perales Pit LLC | 1 | 7 | 25 | $4,654 | 0 |
| Rio Grande Aggregates LLC | 1 | 4 | 8 | $1,208 | 0 |
| Iron Rock Aggregates JV | 1 | 4 | 7 | $1,057 | 0 |
| Martin Marietta Materials Southwest, LLC | 2 | 8 | 6 | $1,216 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Texan Pit | Filegonia Aggregates LLC | Hidalgo County, TX | Sand, common | 6 | 64 |
| Mobile Crusher #3 Frontera Materials | Frontera Materials Inc | Hidalgo County, TX | Crushed, broken stone | 11 | 52 |
| The Bandit Pit | Hard Rock Pit | Hidalgo County, TX | Sand, common | 6 | 51 |
| Mile 4 Pit | Filegonia Aggregates LLC | Hidalgo County, TX | Construction sand and gravel | 6 | 49 |
| Tabasco Pit | Capa | Hidalgo County, TX | Construction sand and gravel | 27 | 39 |
| Mobile Crusher #1 | Frontera Materials Inc | Hidalgo County, TX | Crushed, broken limestone | 10 | 39 |
| La Havana Pit | Terra Firma Materials LLC | Hidalgo County, TX | Crushed, broken limestone | 3 | 33 |
| Perales Pit | Perales Pit LLC | Hidalgo County, TX | Sand, common | 7 | 25 |
| El Pinto Pit | Capa | Hidalgo County, TX | Sand, common | 10 | 20 |
| Alvarez Pit | Rio Grande Aggregates LLC | Hidalgo County, TX | Construction sand and gravel | 4 | 8 |
| Iron Rock Starr 1 | Iron Rock Aggregates JV | Hidalgo County, TX | Construction sand and gravel | 4 | 7 |
| Portable Crusher #2 | Martin Marietta Materials Southwest, LLC | Hidalgo County, TX | Crushed, broken limestone | 8 | 6 |
| San Manuel Pit | Terra Firma Materials LLC | Hidalgo County, TX | Construction sand and gravel | 7 | 6 |
| Carrales Plant | Frontera Materials Inc | Hidalgo County, TX | Sand, common | 5 | 4 |
| Cozad Pit | Frontera Materials Inc | Hidalgo County, TX | Construction sand and gravel | 5 | 0 |
| Portable Crusher HTX | Martin Marietta Materials Southwest, LLC | Hidalgo County, TX | Not stated | 0 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 6 | 35.3% |
| Sand, common | 5 | 29.4% |
| Crushed, broken limestone | 3 | 17.6% |
| Crushed, broken stone | 1 | 5.9% |
| Sand, industrial | 1 | 5.9% |
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 | 94 | 22 | $25,134 | 2 |
| 2023 | 127 | 41 | $109,080 | 3 |
| 2024 | 52 | 10 | $43,067 | 3 |
| 2025 | 107 | 17 | $67,112 | 0 |
| 2026 | 49 | 6 | $10,203 | 3 |
Standards cited most at mines in Hidalgo County, Texas
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 56.14107 | Surface metal and nonmetal mines | 35 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 35 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 25 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 20 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 20 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 16 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.11012 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 10 |
Injury and illness cases at mines in Hidalgo County, Texas
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 2 |
| Permanent disability | 1 |
| Days away from work or restricted activity | 5 |
| No lost time, or an occupational illness | 3 |
What the accident reports at mines in Hidalgo County, Texas describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Machinery | 3 |
| Other | 3 |
| Powered haulage | 2 |
| Handtools (nonpowered) | 2 |
| Handling of materials | 2 |
| Stepping or kneeling on object | 1 |
Equipment named in accident reports at mines in Hidalgo County, Texas
| Equipment | Reports |
|---|---|
| Conveyor | 2 |
| Shovel | 2 |
| Hand tools (not powered) | 2 |
| Ore haulage trucks - on highway trucks | 1 |
| Machine | 1 |
| Welding machine | 1 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. 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.