Common Garter Snake
Thamnophis sirtalis
- 
Common garter snake as seen at left at Conboy Lake National Wildlife Refuge......October 22, 2025. The imageat right shows a common garter snake as seen along the Willard Springs Trail at Conboy Lake National Wildlife Refuge.....April 14, 2025.
A common garter snake observed at the North Breaks, Klickitat Wildlife Area..... April 21, 2025.
- 
Common garter snake at Trillium Lake: Mt. Hood N.F........August 1982 at left. Common garter snake at right as seen at the Sandy River Delta,
near Troutdale, OR .......May 1995.
Paul Slichter