Collin's Earthworks digging out settling ponds at an old Colliery dump Site. The dozers are pushing the clay towards an excavator for loading into trucks.  Biggest Heavy Equipment Machines Working - World Extreme Dangerous Bulldozer Operator Skill Amazing Excavators At Work, Heavy Equipment, Heavy Machines, Trucks And Dumpers, Wheel Loaders, Bulldozers In Action, Construction Machines, Construction, Mining Machines, Heavy Transports, Heavy Lifts, Industrial Demolitions