Production:0682
year | DMM | operator | production | cumulative | opening | depth | seam | thickness | method | days | emp |
---|---|---|---|---|---|---|---|---|---|---|---|
1939 | L-71 | Midwest Smokeless Fuel Corp. | 325,275 | 325,275 | 255 | 60 | |||||
1940 | L-71 | Midwest Radiant Corp., No. 1 | 592,938 | 262 | 66 | ||||||
1941 | L-71 | 512,746 | 358 | 83 | |||||||
1942 | L-71 | 536,275 | 291 | 84 | |||||||
1943 | L-71 | 655,000 | 285 | 78 | |||||||
1944 | L-71 | 604,658 | 290 | 73 | |||||||
1945 | L-71 | 566,397 | 270 | 71 | |||||||
1946 | L-71 | 629,280 | 280 | 41 | |||||||
1947 | L-71 | 659,358 | 298 | 75 | |||||||
1948 | L-71 | 679,446 | 298 | 89 | |||||||
1949 | L-71 | 633,458 | 290 | 89 | |||||||
1950 | L-71 | 612,586 | 6,682,142 | surface | 289 | 94 | |||||
7,007,417 |