Clinton, British Columbia.

According to newspaper reports from September 1967, the battle began when riders representing a number of gangs rolled into Clinton and took over the Frontier Pub, wreaking havoc and beating at least one local senseless.
Soon the street filled with vigilantes, many of them armed. RCMP shut down every business in town and escorted the bikers to a guarded camp outside Clinton. But several men crept through the perimeter, armed with baseball bats and a .22 rifle.
An 18-year-old biker was shot in the side (he later recovered). The riders were escorted all the way back to Vancouver, swearing revenge.
“We're ready,” locals told reporters. The bikers never returned.