Mines and quarries in St Louis County, MO
13 mines not abandoned in St Louis County, MO, in the MSHA file of October 2, 2026.
| Mine | Mine ID | Industry group | Status since |
|---|---|---|---|
| Amrize Bridgeton Sand and Gravel Amrize South Central Inc. | 2300676 | Sand and gravel | Apr 24, 2026 |
| Champ Quarry Martin Marietta Materials, Inc. | 2300220 | Stone | Nov 1, 2011 |
| Dredge Chesterfield Gateway Dredging and Contracting | 2300889 | Sand and gravel | Apr 25, 2002 |
| Dredge Crystal City Gateway Dredging and Contracting | 2302271 | Sand and gravel | Oct 1, 2013 |
| Dredge Gateway Gateway Dredging and Contracting | 2302166 | Sand and gravel | Oct 3, 2008 |
| Dredge St Charles Gateway Dredging & Contracting | 2302076 | Sand and gravel | Apr 25, 2002 |
| Fort Bellefontaine (CS31) Central Stone Company | 2300745 | Stone | Mar 7, 1988 |
| Gravois Plant Winter Brothers Material | 2302531 | Sand and gravel | Jun 29, 2020 |
| Hageman Plant Winter Brothers Material Co. | 2302289 | Sand and gravel | Nov 16, 2007 |
| JEFFERSON BARRACKS (CS-71) Central Stone Company | 2300027 | Stone | Feb 15, 1973 |
| Pacific Plant U.S. Silica Company, LLC | 2300544 | Nonmetal | Sep 9, 1975 |
| Quikrete Companys Inc. Quikrete Companys Inc | 2301597 | Nonmetal | Oct 1, 2004 |
| Shead Winter Brothers Material Company | 2302596 | Sand and gravel | Jun 5, 2025 |
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.