Thickness of Bituminous-Coal and Lignite Seams at All Mines and Thickness of Overburden at Strip Mines in the United States in 1950 Page: 7
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TABLE 5. - NUMBER AND PRODUCTION OF BITUMINOUS-COAL AND LIGNITE STRIP MINES IN THE UNITED STATES, CLASSIFIED BY THICKNESS OF SEAMS MINED IN EACH E IN 1950
(Exclusive of mines producing less than 1,000 tons)Less than 2 feet
2 to 3 feet
3 to 4 feet
4 to 5 feet
5 to 6 feet
6 to 7 feet
- _I _ .
Number
of
minesProduction
(net
tons)Percent
of Number
total of
produc- mines
tionProduction
(net
tons)Percent
of Number
total of
produc- mines
tionProduction
(net
tons )Percent
of
total
produc-
tionNumber
of
minesProduction
(net
tons)Percent
of
total
produc-
tionNumber
of
minesProduction
(net
tons )Percent
of Number
total ofproduc-
tion4I I I I I 4 I II 1
1
25
1
8Alabama...................
Alaska....................
Arisona...................
Arkansas..................
California (lignite).....
Colozado...............
GOorgia..e....e..........
Illinois.................
Indiana...................
Iowa......................
Kansas....................
Kentucky..................
Maryland.................
Michigan.................
Missouri. ................
Montana:
Bituaminous............
Lignite ...............
Total Montana......
New Mexico.............
North Carolina..........
North Dakota (lignite)....
Ohioe......................
Oklahoma,..................
Oregon ...................
Pennsylvania..............
South Dakota (lignite)....
Tennessee.................
Texas (lignite)...........
Utah. ......... ............
Virginia...............
Washington................
West Virginia.............
yomingo ............. .
Other statesk............
Total..............33,473
96,971
-w
21,582
1,301,709
16,561
163,110165,931
814,016
396,615
159,395
29,4791.8
19.2
.2
64.3
.1
6.20.7
47.1
1.5
27.3
.229
4
1
8
7
2
1
13
3
1673
15
201
4
2
1
71,023,374
(1)
2,000
101,414
565,050
46,347
685,375
257,577
42,625
778,46454.2
.4
.6
5.3
3.9
33.9
1.9
26.5
29.54,048,198 17.8
814,668
8,946,482
132,662
143,539
(1)
241,344
39,91647.2
33.8
22.7
-
9.2
1.97
1
4
1
1
15
10
10
6
77
5
13160
2
229
9
3
54327,443
(1)
136,613
(1)
17,446
4,026,576
2,006,941
180,941
37,268
3,095,696
46,363
1,252,2939,058,644
20,757
8,984,613
204,795
248,363
-
2,181,688
95,80917.3
27.0
4.3
22.9
18.7
15.2
1.8
22.1
28.8
47.539.8
1.2
34.0
35.1
15.9
16.82 361,532
27
19
16
23
5
51
45
2
107
2
1
5
1
48
11 1 1 1 1 I 1 1
83 3,198,842 1 2.6
387
17,869,035 14.5 607 131,922,249
25.8
311
11,400
5,858,021
6,578,199
535, 473
2,488,565
26,955
439,27411,029
7,956,784
77,733
4,064,123
34,989
52,000
290,130
37,819
2,160,454
2,60530,987,085
19.1 1
- -w2.3
33.3
61.2
45.0
17.8
16.7
16.70.4
34.9
4.5
15.4
100.0
8.9
18.5
53.6
16.6
.21
11
5
6
114
14
81
1
3
6425.1 202
98,124
146,057
1,759,990
1,462,361
104,839
4,508,60013,724
1,501,137
2,433,368
35,214
224,245
3,836,9095.2
35.9
10.0
13.6
8.8
32.30.5
6.6
9.2
6.0
14.3
29.6mines
1
1
3
14
1
3
104
1
61
3
35
1Production
(net
tons)16,700
5,154
48,449
5,752,262
103,588
322,911
2,993,525
2,283411,366
26,800
1,145,462
87,373
2,363,158
81,005Percent
of Number
total ofproduc-
tionmines
7 to 8 feet
8 feet and over
Total
- I I 1 I I 1 I
Production
(net
tons)Percent
of Number
total of
produc- mines
tionProduction
(net
tons )Percent
of
total
produc-
tionNumber Production
of (net
mines tons)I 4i 1 I I I 1 1 1
0.9
1.0
11.9
32.6
1.0
27.1
21.414.5
.1
4.3
5.6
18.2
5.54
15
1
2210
56,944
1,8460.3
(2)27,392
(1)
194, 761
57,216
617,119
45,1111.5
47.9
.3
4.4
28.046
5
15
1
8
81
44
37
32
136
22
431,888,038
130,737
504,946
(1)
406,713
17, 612,423
10, 739,567
1,190,511
2,024,352
13,977,643
161,054
2,635,424- 1 1,708,149 100.0 1 i, 708,149
- 1 (1) - 1 (1)403,429
8,020
305,565730,088
14.3
(2)
1.223
1
9
1
3
2
30
101,717,179
1,988,508
9,679
150,369
18,169
571,996
30,227
1,443,034
1,375,289
261,838100.0
70.3
.1
.6
100.0
36.5
42.9
11.1
94.32
37
303
29
726
2
16
1
19
4
249
12- I I I i I I I i I I
16,124,568 13.1
139 113,360,036
10.8
43
1,505,892
1.2
98
8,498,857
6.9
1,717,179
2,828,056
22,775,193
1,727,174
26,426,597
34,989
584,066
18,169
1,565,646
70,540
12,986,154
1,458,899
11, 5241,870 123,466,564
2/ Included under "Other States" to avoid disclosure.
Iess than 0.05 percent.
4889
4889State
-
8
10
16
1I I I I
M - - - r -. - r r - w w - - -
- - - - - - - - - - - - - - - w wr.I I I I I I I i I I
I t I .
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Young, W. H. & Anderson, R. L. Thickness of Bituminous-Coal and Lignite Seams at All Mines and Thickness of Overburden at Strip Mines in the United States in 1950, report, September 1952; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc67062/m1/21/?rotate=90: accessed May 4, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.