▁produced . ▁There ▁are ▁several ▁l odes ▁at ▁the ▁mine , ▁some ▁of ▁which ▁were ▁crossed ▁by ▁an ▁el van ▁dy ke , ▁ 1 5 ▁to ▁ ▁wide ▁which ▁in ▁places ▁was ▁highly ▁min eral ized . ▁ ▁Early ▁history ▁There ▁were ▁probably ▁mine ▁work ings ▁in ▁the ▁area ▁of ▁Whe al ▁Bus y ▁since ▁the ▁ 1 6 th ▁century , ▁but ▁it ▁was ▁not ▁until ▁the ▁ 1 7 2 0 s ▁that ▁the ▁mine ▁started ▁to ▁produce ▁large ▁amounts ▁of ▁co pper ▁ore . ▁The ▁principal ▁land owner ▁was ▁the ▁Bos ca wen ▁family . ▁The ▁mine ▁was ▁located ▁in ▁what ▁was ▁known ▁at ▁the ▁time ▁as ▁" the ▁rich est ▁square ▁mile ▁on ▁Earth ". ▁During ▁its ▁life ▁it ▁produced ▁over ▁ 1 0 0 , 0 0 0 ▁tons ▁of ▁co pper ▁ore , ▁and ▁ 2 7 , 0 0 0 ▁tons ▁of ▁ar sen ic . ▁The ▁mine ▁adopted ▁the ▁name ▁of ▁Whe al ▁Bus y ▁after ▁ 1 8 2 3 . ▁At ▁one ▁time ▁the ▁mine ▁also ▁sm elt ed ▁the ▁co pper ▁ore ▁it ▁produced . ▁ ▁Ste am ▁engines ▁ ▁The ▁mine ▁suffered ▁badly ▁from ▁under ground ▁water ▁and ▁in ▁order ▁to ▁p ump ▁it ▁out , ▁one ▁of ▁the ▁first ▁New com en ▁engines ▁in ▁Corn wall ▁was ▁installed ▁by ▁Joseph ▁Horn b lower ▁in ▁ 1 7 2 7 . ▁In ▁ 1 7 7 5 ▁this ▁was ▁replaced ▁by ▁a ▁ 7 2 - inch ▁engine ▁designed ▁by