Labor & capacity
People on the benches
Capacity is a labor problem as much as a reserve problem. Lithos maps on-site crew from the atlas mines, BEA employment by industry, and field-kit headcounts so a gravel pit and a porphyry copper can be compared in tonnes per person-year.
Atlas on-site crew
39,220
Metal ore mining employment
42,000
Nonmetallic mineral mining employment
105,000
Mining support activities (minerals share)
38,000
State mining employment
BEA-aligned persons, top twelve states.
Tonnes per person-year
Nameplate capacity divided by on-site crew.
- Texas Crushed Stone — Georgetown54,545 t/p · 85%
- Vulcan Mideast district42,857 t/p · 88%
- Georgetown / Hunter (cluster)42,105 t/p · 90%
- Luck Stone — Richmond belt34,615 t/p · 87%
- Heidelberg — southeastern PA32,353 t/p · 84%
- Knife River — Willamette23,684 t/p · 82%
- Holcim Portland (Florence)11,053 t/p · 79%
- Heidelberg Midlothian10,909 t/p · 84%
- Mesabi Range (cluster)10,526 t/p · 78%
- CEMEX Victorville10,357 t/p · 81%
Largest crews on the atlas
| Mine | State | Crew | Utilization |
|---|---|---|---|
| Morenci | AZ | 3,800 | 86% |
| Mesabi Range (cluster) | MN | 3,800 | 78% |
| Carlin Complex | NV | 2,800 | 90% |
| Bingham Canyon | UT | 2,300 | 84% |
| Central Florida phosphate | FL | 1,800 | 76% |
| Cortez | NV | 1,600 | 88% |
| Stillwater / East Boulder | MT | 1,600 | 80% |
| Sierrita | AZ | 1,400 | 78% |
| Bagdad | AZ | 1,100 | 82% |
| Ray | AZ | 900 | 74% |
| Turquoise Ridge | NV | 900 | 85% |
| Viburnum Trend | MO | 900 | 80% |