The Northern Pacific Rattlesnake lives in the Thompson Okanagon region of British Columbia, Canada, and Kamloops is at the northern end of their range. People commonly find these snakes in areas with bunchgrass, Ponderosa pine or Douglas fir.
The Northern Pacific Rattlesnake has a triangular head with deep pits between the nostrils, a distinct neck and a rattle on the end of its tail. The snake has dark blotches with lighter patches on its back. It is generally non-aggressive. It prefers to stay quiet and camouflaged if it senses danger, but will coil up and rattle its tail aggressively while making an S-shaped curve with its neck when cornered. The snake only strikes if it is in immediate physical danger.