

1971
Huge-diameter pipe lifted against a clear sky.
The company
TransCanada PipeLines, whose chairman and president were based in Toronto, was coating and wrapping 42-inch pipe in western Manitoba.
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That year
At December 31, 1971 TransCanada had 4,007 miles of pipeline including loop line and 47 compressor stations, after a year in which the volume of natural gas transmitted to market reached a new high.
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