Production:1830305

From ILMINES WIKI
year DMM company production cumulative type depth seam thickness method days emp
1918 Spangler & Hume 6,755 6,755
1919 Spangler & Cessna 6,757
1920 7,525
1921 6,343
1922 0 20,625
1923 Spangler Brothers 4,914
1924 0
1925 0
1925b 625 5,539
32,919