In 1911 the Canadian Northern Railway (CNoR) began to lay track through Big Valley. In 1912 Big Valley built a thriving terminal with a big roundhouse, stockyards, rail yards, water tower, coal-dock, general railway maintenance and repair facilities. It became a village in 1914 with a population of 500 growing to 803 in 1920 when it became a town. After the merger of Canadian Northern Railway and Grand Trunk Pacific railways to create Canadian National Railway (CNR) they believed there was no need of a railway to go through Big Valley. There are still the remains of the railway you can see with a walking self-tour.