The Silver Spade was a giant power shovel used for strip mining in southeastern Ohio. Manufactured by Bucyrus-Erie, South Milwaukee, Wisconsin, the model .\rbr\rbr\rbr\rbrTHE SILVER SPADE CROSSING RT 519 SEVEN MIN VIDEO MADE ON 4701.\rbr\rbrHere is a video of the Silver Spade being made. Mining equipment is my favorite so I really enjoyed building this monster of a machine. It is the worlds largest .\rbr\rbrMega Machines in the World mega truck longest biggest digging machine megatructures.