Show chronicle ITO 8 shaft tamarack mine elm world depth MO et mile far behind red jacket batt batt shaft Cil calumet branch property down feet rill 2 incline mile add half half halt view view few nature need depth de obstacle deep mining proportionate increase temperature lake superior state lake temperature mine degree feet temperature tamarack calumet 9 60 60 go degree view condition evident jet jet yet mary marvelous modern engine al GREAT DEPTHS IM hey JOB district world mining Uon depth lake lake rake bus bus sus region ways chi down 90 feet another calumet flee test test feet pr st G st 00 |