what species is this?

[gibble888]

Next time just count the upper labial scales. 8 is T. elegans.

Here's a list of garters found in CO. They all have 7 upper labial scales except for T. elegans which has 8.

• W. Blackneck Garter Snake - Thamnophis c. cyrtopsis (S.E. to S.W. CO) Uncommon
• Western Terrestrial Garter Snake - Thamnophis elegans vagrans("Wandering" subspecies) (Most of Colorado) Common
• Plains Garter Snake - Thamnophis radix (Eastern Slope) Common
• Red Sided Garter Snake - Thamnophis sirtalis parietalis (North-Central to N.E. CO) Common

. noted....thanks