CHS Logo  

Colorado Herpetological Society's

Guide to the Reptiles and Amphibians of Colorado

  
About this Guide
Naming Conflicts,
Documenting,
& References
INDEX OF SPECIES
By Common Name
By Scientific Name
Grouped By Family
Index of Counties
Map of Counties
IDENTIFICATION KEYS
Amphibians
Turtles
Lizards
Snakes
List of Subspecies
CHS Home Page
  

Common Garter Snake
(Thamnophis sirtalis)

Common Garter Snake

Family Colubridae

Photo from Hammerson, 1986.
Used with permission.

Last Updated on January 20, 2000.

Common Garter Snake (Thamnophis sirtalis)   Range Map
Color Key
Description:
Adults to 49" in length. Color black, gray, or brown; prominent yellow stripe on back, pale stripe on sides; red blotches between dorsal and lateral stripes. Moderately slender body; keeled scales. Single anal plate.
Elevation Range:
Below 6000' in northeastern Colorado.
Subspecies in Colorado:
Thamnophis sirtalis parietalis

Common Garter Snake
(Thamnophis sirtalis)
CountyRef. CountyRef. CountyRef. CountyRef.
AdamsH Dolores  La Plata  Pitkin 
Alamosa  Douglas *  Lake  Prowers 
Arapahoe *  Eagle  LarimerH Pueblo 
Archuleta  El Paso  Las Animas  Rio Blanco 
Baca  Elbert  Lincoln  Rio Grande 
Bent  Fremont  LoganH Routt 
BoulderH Garfield  Mesa  Saguache 
Chaffee  Gilpin  Mineral  San Juan 
Cheyenne  Grand  Moffat  San Miguel 
Clear Creek  Gunnison  Montezuma  SedgwickH
Conejos  Hinsdale  Montrose  Summit 
Costilla  Huerfano  MorganH Teller 
Crowley  Jackson  Otero  WashingtonH
Custer  JeffersonH Ouray  WeldH
Delta  Kiowa  Park  YumaGAH13
Denver *  Kit Carson  Phillips * 

Copyright © 1998 - 2006, Colorado Herpetological Society. All rights reserved.

  
 
WS Logo   Site designed and hosted by: WebSpinners.com   (info@webspinners.com)
 WebMaster: Donald L. Blanchard.