Known Sodium Leasing Area (KSLA) Map
Wyoming Trona Mining
| Year |
Mine Production (Tons) |
Employees |
2007 |
17,190,002 |
2,225 |
2006 |
18,058,020 |
2259 |
2005 |
17,859,365 |
2,188 |
| 2004 |
17,286,508 |
2,115 |
| 2003 |
16,303,473 |
2,185 |
| 2002 |
15,941,124 |
2,281 |
| 2001 |
16,510,312 |
2,467 |
| 2000 |
16,680,848 |
2,622 |
| 1999 |
16,761,567 |
3,085 |
| 1998 |
17,210,473 |
2,882 |
| 1997 |
18,081,884 |
2,971 |
| 1996 |
17,491,891 |
3,022 |
| 1995 |
18,171,257 |
2,991 |
| 1994 |
16,079,172 |
2,920 |
