Mines and quarries in King County, WA
19 mines not abandoned in King County, WA, in the MSHA file of October 2, 2026.
| Mine | Mine ID | Industry group | Status since |
|---|---|---|---|
| Arcosa Specialty Materials Seattle #1890 Arcosa Specialty Materials | 4503239 | Stone | May 20, 1991 |
| Auburn Facility ICON Materials | 4501237 | Sand and gravel | Jan 24, 1986 |
| Elk Heights Pit KLB Construction LLC | 4503797 | Sand and gravel | Jan 1, 2025 |
| Enumclaw Pit & Plant HM Pacific Northwest Inc. | 4500609 | Sand and gravel | Jul 18, 2006 |
| Franklin Ridge Sand & Gravel Green Section 30 LLC | 4503415 | Sand and gravel | Jan 18, 2018 |
| Issaquah Pit & Plant Lakeside Industries, Inc | 4500652 | Sand and gravel | Jun 1, 2020 |
| Jensen Portable Screens Jensen Sand & Gravel | 4501207 | Sand and gravel | Oct 1, 2021 |
| Kangley Pit Kangley Sand & Gravel | 4501994 | Sand and gravel | Jun 28, 2024 |
| Manufacturers Mineral Co. Renton Plant Manufacturers Mineral Company | 4503315 | Sand and gravel | Jan 10, 2026 |
| North Bend HM Pacific Northwest, Inc. | 4503547 | Stone | Oct 21, 2004 |
| PALMER JUNCTION GRAVEL PIT-KANASKAT PIT Lakeside Industries, Inc. | 4502825 | Sand and gravel | Oct 4, 1993 |
| Plant D Rock Services Inc. | 4503790 | Sand and gravel | Jun 1, 2025 |
| Portable 1 Severson Road Contractors | 4503808 | Stone | May 8, 2026 |
| Ryterra LLC Ryterra | 4503172 | Stone | May 8, 2026 |
| Seattle Plant Ash Grove Cement Company | 4500359 | Stone | Jan 1, 1992 |
| Snoqualmie S&G dba CalPortland Company CalPortland Company | 4503136 | Sand and gravel | Mar 28, 2020 |
| Thunder Mountain Quarry HM Pacific Northwest, Inc. | 4501127 | Stone | Jan 18, 2018 |
| VASHON SAND AND GRAVEL dba CalPortland CalPortland Company | 4501707 | Sand and gravel | May 14, 2023 |
| White River Quarry CalPortland Company | 4503374 | Stone | Apr 26, 2020 |
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.