Various shots of pipe-laying crews at work in Northern Ontario scrub forest. Shots of 30" diameter pipe sections being unloaded from flat cars at Temagami stations, being stacked in field, being loaded on trucks. Shots of mechanical shovels digging ditch through swamp and muskeg, lengths of pipe visible in background in some shots. Shot of "liner" crew at work lining up pipe sections for welders by means of tractor with side boom. MSs of welders at work on seams. Brief shots of cleaning crew sanding off pipe, applying coat of filler. Shot of tractors with side booms lifting pipe into position for dope machine "doping" pipe and wrapping it with fibre glass and heavy paper. Several CUs of dope and wrapping machine at work. Shots of crew lowering pipe into trench. Shot of trailer "village", spruce, tamarack, muskeg and rock well in evidence on sidelines and background. (00/07/1958)