Mines and quarries in Williamson County, TX
41 mines not abandoned in Williamson County, TX, in the MSHA file of October 2, 2026.
| Mine | Mine ID | Industry group | Status since |
|---|---|---|---|
| Aguado Stone Inc. - 151 Jarrell Aguado Stone Inc. | 4105086 | Stone | Sep 2, 2014 |
| Aguado Stone Inc. -Georgetown Aguado Stone Inc. | 4103972 | Stone | Dec 10, 1997 |
| America #1 SOLID ROCK CRUSHING, LLC | 4105421 | Stone | Nov 22, 2022 |
| Armadillo Pit Wilco Aggregates, LLC | 4105692 | Stone | Aug 11, 2025 |
| AusTex Aggregates LLC | 4105267 | Sand and gravel | Nov 22, 2022 |
| Brauer Pit 1 Wilco Aggregates, LLC | 4105648 | Stone | Nov 4, 2025 |
| Cobra Stone Quarry Cobra Stone Inc | 4104533 | Stone | Apr 13, 2005 |
| Cooper Quarry-East Cooper Stone | 4105051 | Stone | Oct 20, 2020 |
| Cooper Stone Billy Cooper Stone Co. Inc. | 4103401 | Stone | Jun 10, 1992 |
| Cordova Quarry Cobra Stone Inc. | 4101344 | Stone | Jan 8, 2014 |
| CR 239 Quarry Central Texas Stone and Aggregate LLC | 4104477 | Stone | Jan 8, 2010 |
| Espinoza Quarry # 1 Espinoza Stone Inc. | 4103933 | Stone | Jan 24, 2023 |
| Espinoza Stone Inc. Quarry #3 Espinoza Stone Inc. | 4105133 | Stone | Jun 8, 2015 |
| Florence Quarry Imperial Products Supply, LLC | 4105604 | Stone | Mar 11, 2022 |
| Georgetown Qy & Plt Texas Crushed Stone Company Inc | 4100069 | Stone | Jul 4, 1976 |
| Granger Quarry Rowe Valley Materials | 4105773 | Stone | Jul 28, 2025 |
| HEARTLAND QUARRIES PIT # 2 HEARTLAND QUARRIES LLC | 4104908 | Stone | Apr 25, 2022 |
| Hill Stone Company | 4103979 | Stone | Jan 21, 1998 |
| J & J Stone Company Inc. | 4104979 | Stone | Dec 3, 2012 |
| Jarrell Location Kirby Limestone, LLC | 4105124 | Stone | May 1, 2015 |
| JGM Aggregates LLC JGM Aggregates, LLC | 4105184 | Stone | Apr 1, 2016 |
| Juarez Stone Inc. #2 Juarez Stone Inc. | 4105749 | Stone | May 1, 2024 |
| Legend Stone FP Legend Stone LLC. | 4105704 | Stone | Apr 5, 2024 |
| Lithic Industries Quality Stone Company | 4103923 | Stone | Oct 17, 1996 |
| Lone Star Aggregates - Florence Lone Star Aggregates | 4105322 | Stone | Jul 1, 2018 |
| Lone Star Aggregates - Ronald Reagan Asphalt Inc., LLC | 4104807 | Stone | Dec 8, 2009 |
| McCar Materials Quarry #1 McCar Materials LLC | 4105425 | Stone | May 14, 2019 |
| Morgan Pit A J Brauer Stone Inc | 4103435 | Stone | Sep 30, 1986 |
| North Austin Quarry Martin Marietta Materials Southwest LLC | 4104380 | Sand and gravel | Apr 1, 2014 |
| PIERCE PIT Howard Pierce & Sons Stone Company LLC | 4103796 | Stone | Dec 7, 1993 |
| Rattlesnake Quarry Ranger Excavating, LP | 4105819 | Stone | Oct 8, 2025 |
| Resource Materials Resource Materials LLC | 4105480 | Stone | Apr 26, 2021 |
| Rock Quarry Juarez Stone Inc | 4104612 | Stone | Jul 19, 2006 |
| Ronald Reagan Pit Adams Materials and Excavation LLC | 4105756 | Stone | May 27, 2024 |
| Ronald Reagan Plant Central Texas Stone & Aggregate | 4105549 | Stone | Apr 25, 2022 |
| Salado Creek Quarry McCar Materials | 4105858 | Stone | Apr 3, 2026 |
| Salado USA BC3B Salado Operations LLC | 4104216 | Stone | Oct 11, 2000 |
| Stone Pit 4 Espinoza Stone | 4105448 | Stone | Nov 22, 2022 |
| Texas Limestone LLC | 4103971 | Stone | Dec 10, 1997 |
| True Materials True Sand and Gravel LLC | 4105746 | Sand and gravel | Jul 1, 2024 |
| WEIR PLANT Alamo Concrete Products Company | 4102201 | Stone | May 24, 1974 |
Alphabetical order — this site ranks no one. Mines that are not abandoned in the MSHA file of October 2, 2026. Sole proprietors are found by mine ID only. How to read this.