Production:4533

From ILMINES WIKI
year DMM operator address production cumulative opening depth seam thickness method days emp
1933 Quality Coal Co. Marion 2,151 ug 128 13
1934 4,500 ug 120 15
1935 2,000 ug 125 9
1936 4,350 ug 145 10
1937 L-28 4,500 ug 160 9
1938 2,450 ug 110 7
1939 1,750 ug 105 8
1940 3,100 ug 115 10
1941 3,375 28,176 ug 135 8