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Table 01. Number of Bituminous Coal Operations in the United States, by Primary Activity, 1978-2007

 

 

 

Underground Mines

Surface Mines

Year

Underground

Surf at UG

Total

Strip

Auger

Culm Bank

Dredge

Total

1978

2,462

152

2,614

3,086

53

15

1

3,155

1979

2,312

175

2,487

2,817

32

16

6

2,871

1980

2,341

303

2,644

2,694

30

16

9

2,749

1981

2,362

374

2,736

2,777

32

21

12

2,842

1982

2,383

258

2,641

2,698

39

20

14

2,771

1983

2,043

42

2,085

2,165

36

18

16

2,235

1984

2,087

31

2,118

2,170

50

22

15

2,257

1985

1,986

29

2,015

2,041

52

19

14

2,126

1986

1,931

39

1,970

1,938

52

28

14

2,032

1987

1,887

39

1,926

1,831

71

25

18

1,945

1988

1,768

57

1,825

1,695

90

27

20

1,832

1989

1,661

42

1,703

1,590

90

30

21

1,731

1990

1,660

41

1,701

1,526

92

30

17

1,665

1991

1,484

44

1,528

1,442

82

26

21

1,571

1992

1,343

39

1,382

1,314

80

24

17

1,435

1993

1,214

50

1,264

1,192

83

29

13

1,317

1994

1,152

48

1,200

1,110

97

31

17

1,255

1995

998

30

1,028

1,022

96

30

14

1,162

1996

898

39

937

891

103

30

15

1,039

1997

895

27

922

862

94

29

15

1,000

1998

841

25

866

814

94

33

19

960

1999

754

24

778

759

104

30

16

909

2000

716

18

734

682

84

31

16

813

2001

727

23

750

695

95

33

15

838

2002

667

18

685

709

81

33

11

834

2003

600

19

619

682

72

35

14

803

2004

606

14

620

715

93

41

10

859

2005

634

15

649

731

98

46

7

882

2006

635

19

654

743

107

47

6

903

2007

600

12

612

724

101

48

8

881

 


Table 01. Number of Bituminous Coal Operations in the United States, by Primary Activity, 1978-2007 continued:

 

Year

Total Mining

Indp Shops/Yrds

Prep Plants

Total w/o Office

Office

Grand Total

1978

5,769

156

926

6,851

27

6,878

1979

5,358

160

961

6,479

28

6,507

1980

5,393

163

994

6,550

42

6,592

1981

5,578

164

1,083

6,825

50

6,875

1982

5,412

156

951

6,519

44

6,563

1983

4,320

142

717

5,179

30

5,209

1984

4,375

138

709

5,222

22

5,244

1985

4,141

127

674

4,942

32

4,974

1986

4,002

117

658

4,777

28

4,805

1987

3,871

99

647

4,617

22

4,639

1988

3,657

84

627

4,368

34

4,402

1989

3,434

84

611

4,129

34

4,163

1990

3,366

78

589

4,033

25

4,058

1991

3,099

80

556

3,735

27

3,762

1992

2,817

76

530

3,423

36

3,459

1993

2,581

76

501

3,158

41

3,199

1994

2,455

78

476

3,009

28

3,037

1995

2,190

74

426

2,690

33

2,723

1996

1,976

67

410

2,453

26

2,479

1997

1,922

59

383

2,364

28

2,392

1998

1,826

57

374

2,257

31

2,288

1999

1,687

46

350

2,083

28

2,111

2000

1,547

45

316

1,908

25

1,933

2001

1,588

54

310

1,952

20

1,972

2002

1,519

58

315

1,892

18

1,910

2003

1,422

54

326

1,802

23

1,825

2004

1,479

46

321

1,846

17

1,863

2005

1,531

41

322

1,894

17

1,911

2006

1,557

38

348

1,943

12

1,955

2007

1,493

38

335

1,866

9

1.875