In the late 19th and early 20th century, the dairy industry was important in North Canaan. Milk was brought to the Borden plant next to the railroad in the center of town. The milk was shipped twice a day to New York City.

The lock-manufacturing village of Terryville was served by the Bristol-Plainville Tramway / Bristol Traction Co.

The clock manufacturing community of Plymouth Hollow was incorporated as Thomaston in 1975. It was served by cars from Watebury 1908-1929.

Gail Borden produced the first condensed milk in Torrington in 1856. Other locally manufactured products were needles, ball bearings and roller skates. The isolated Winsted- Torrington trolley line served the town until 1929. Cars also ran to the amusement park at Highland Lake.

Watertown was a center of silk thread and garden tool manufacturing. It was served by cars from Waterbury until 1937.

Served by the isolated Winsted- Torrington line until 1929. Cars also ran to the amusement park at Highland Lake.