Name Worland Mill
Owner Black Hills Bentonite Corp.
Operator Black Hills Bentonite Corp.
Type Surface
Product Bentonite

Year

Production
(Tensleep Mine to 2003/Worland Mill - 2004 to present)
(tons)

Employees
( Worland Mill 2004 to present; Tensleep Mine plus Worland Mill 1994 to 2003)
2009
Not Listed
Not Listed
2008
167,494
10
2007
168,337
11
2006
165,124
11
2005
163,762
11
2004
165,863
11
2003
134,344
17
2002
175,889
17
2001
169,852
15
2000
153,709
15
1999
155,203
17

1998

138,616

21

1997

191,483

24

1996

145,691

23

1995

162,356

30

1994

170,254

29

 

Name Ten Sleep Mine
Owner Black Hills Bentonite Corp.
Operator Black Hills Bentonite Corp.
Type Surface
Product Bentonite

Year

Production
(Tensleep Mine )
(tons)

Employees
( Tensleep Mine 2000 to present; Tensleep Mine plus Worland Mill 1994 to 1999)
2009
166,283
6
2008
234,528
7
2007
177,119
8
2006
202,972
7
2005
175,088
7
2004
202,574
6
2003
134,344
5
2002
175,889
6
2001
169,852
4
2000
153,709
4
1999
155,203
17

1998

138,616

21

1997

191,483

24

1996

145,691

23

1995

162,356

30

1994

170,254

29