Prairie rattlesnakes are common in southeastern Alberta and parts of Saskatchewan. Here in Lethbridge, they reach the northwestern limit of their range. Most rattlesnake sightings are in West Lethbridge, although snakes have been seen in the coulee areas on the east side of Oldman River.
Rattlesnakes spend much of their time on dry coulee slopes but will wander into cottonwood forests and wetlands to find food. The benchland, or top of coulees where housing subdivisions now sit, were once critical summer habitats for the snakes. Rattlesnakes also enjoy sunning themselves on paved paths, so you may see them on pathways on RiverStone and other West Lethbridge neighbourhoods.
The most common areas for sightings are:
- Bridge Drive
- Paradise Canyon community and the surrounding area
- Popson Park and Cottonwood Park nature reserve
- RiverStone community
- SunRidge community