Pontiac Pacific Junction Railway

The Pontiac Pacific Junction Railway Company (PPJR) is a historic Canadian railway that operated in the upper Ottawa River valley in western Quebec and northeastern Ontario, Canada.

The railway ran from Aylmer through Quyon, Shawville, Fort Coulonge, and Waltham to Pembroke, Ontario.

The PPJR was incorporated in 1880 and merged with the Ottawa Northern and Western Railway in 1903. It was the first Canadian railway to light cars using acetylene.

Its infamous nickname was Push, Pull and Jerk.

Taken over by Canadian Pacific in 1902, passenger service on the line was discontinued in 1959. Freight service followed suit in the 1980s, after which the rails were permanently dismantled in 1984 and later turned into a linear park or bicycle trail the Cycloparc PPJ rail trail stretching from Bristol, Quebec, to Pembroke, Ontario.