| Business | Phone |
| Foundation Coal Corp 391 Inverness Pkwy # 333, Englewood 80112 | (303) 749-8400 |
| Newmongt Mining Corp 96 Inverness Dr E, Englewood 80112 | (303) 768-8393 |
| Newmont Exploration Ltd 10101 E Dry Creek Rd, Englewood 80112 | (303) 708-4000 |
| Thompson Creek Metals Co 945 W Kenyon Ave, Englewood 80110 | (303) 761-8801 |