Mines and quarries in Weld County, CO
39 mines not abandoned in Weld County, CO, in the MSHA file of October 2, 2026.
| Mine | Mine ID | Industry group | Status since |
|---|---|---|---|
| 115 WP Raptor Materials LLC | 0504681 | Sand and gravel | May 17, 2013 |
| Amrize Distel Plant Amrize West Central Inc. | 0504476 | Sand and gravel | Oct 5, 2011 |
| Amrize Platte Valley Plant Amrize West Central Inc. | 0504332 | Sand and gravel | Nov 28, 2014 |
| Amrize Scout Island Amrize West Central Inc. | 0504862 | Sand and gravel | May 13, 2016 |
| Bennett Pit Northern Colorado Constructors, Inc. | 0504785 | Sand and gravel | Apr 16, 2026 |
| Bucklen Equipment Company Incorporated | 0504040 | Sand and gravel | Feb 5, 2016 |
| Chavers Mining Resource Asphalt Specialties Co., Inc. | 0505043 | Sand and gravel | Jul 20, 2020 |
| DENM Monarch Mountain Minerals & Aggregates | 0505193 | Sand and gravel | Apr 16, 2026 |
| Denver Rock Denver Rock Company LLC | 0505212 | Sand and gravel | Aug 21, 2026 |
| Evans Sand and Gravel Asphalt Specialties Co. | 0505204 | Sand and gravel | Sep 18, 2026 |
| Ewing Gravel Pit Burnco | 0505191 | Sand and gravel | Apr 16, 2026 |
| FIRESTONE GRAVEL RESOURCE L.G. Everist, Inc. | 0505030 | Sand and gravel | Sep 2, 2026 |
| FORT LUPTON SAND & GRAVEL L.G. Everist, Inc. | 0501910 | Sand and gravel | Apr 30, 2004 |
| Green/Croissant Loveland Ready Mix Concrete Inc. | 0504753 | Sand and gravel | Aug 24, 2026 |
| Hunt Water Res #2 J-2 Contracting Co. | 0505127 | Sand and gravel | Oct 28, 2021 |
| Inouye Gravel Mine BURNCO Colorado LLC | 0504615 | Sand and gravel | Oct 1, 2018 |
| Keenesburg #2 Colorado Sand Company | 0505159 | Nonmetal | Jan 9, 2024 |
| Nelson Mining Resource Asphalt Specialties Co., Inc | 0505132 | Sand and gravel | Apr 16, 2026 |
| Nissen Gravel Mine BURNCO Colorado LLC | 0504915 | Sand and gravel | Jul 19, 2021 |
| North Weld Gravel Pit C & H Excavation LLC | 0505101 | Sand and gravel | Oct 6, 2020 |
| Parsons Sand and Gravel Martin Marietta Materials | 0503215 | Sand and gravel | May 24, 2019 |
| Pit 25-Morton Lakes Ready Mixed Concrete Company | 0505046 | Sand and gravel | Jul 22, 2026 |
| Pit 26-Nix Brannan Sand and Gravel Company, LLC. | 0505158 | Sand and gravel | Oct 8, 2022 |
| Platte Sand and Gravel Martin Marietta Materials | 0504418 | Sand and gravel | Feb 20, 2025 |
| Portable #2 Pine Bluffs Gravel & Excavating | 2501253 | Sand and gravel | Apr 16, 2026 |
| Portable Crusher #1 Connell Resources Inc | 0504194 | Sand and gravel | Apr 16, 2026 |
| Portable Crusher #1 Mill Iron Mining | 0505015 | Sand and gravel | May 13, 2016 |
| Portable Crusher #2 Connell Resources Inc | 0504495 | Sand and gravel | Feb 18, 2026 |
| PORTABLE CRUSHER #2 Weld County | 0504540 | Sand and gravel | Nov 1, 2022 |
| Portable Plant 1 Laser Oilfield Services | 0505000 | Sand and gravel | Jun 29, 2020 |
| Portable Plant 2 Laser Oilfield Services | 0505048 | Sand and gravel | Apr 16, 2026 |
| Portable Plant 2 Loudwire Diesel LLC | 0505201 | Sand and gravel | Jul 30, 2025 |
| Portable Reclamation Crew Weld County | 0504150 | Sand and gravel | Sep 25, 2024 |
| Poudre Ponds Pit J-2 Contracting Co. | 0505166 | Sand and gravel | Apr 16, 2026 |
| Ragsdale Reservoirs L.G. Everist, Inc. | 0505138 | Sand and gravel | Apr 16, 2024 |
| Riverbend Sand and Gravel Martin Marietta Materials Inc | 0504841 | Sand and gravel | Feb 1, 2013 |
| Sweet Valley Reservoir Complex J-2 Contracting Co. | 0505194 | Sand and gravel | Jul 22, 2024 |
| Two Rivers Raptor Materials LLC | 0505192 | Sand and gravel | Mar 4, 2025 |
| VIP Mine VIP Mine LLC | 0505171 | Sand and gravel | Apr 16, 2026 |
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.