Lined Snake
Tropidoclonion lineatum

Family Colubridae

Adults 12" to 21" in length. Color gray, with light gray, yellow, or orange stripe on back, and less defined pale stripe on sides. Underside whitish or yellow, with two rows of conspicuous black marks. Moderately slender body; keeled scales. Single anal plate.
Elevation Range:
Below 6000' in eastern Colorado.
Subspecies in Colorado:
Tropidoclonion lineatum lineatum
  Lined Snake
Photo from Hammerson, 1986.
Used with permission.
CountyRef. CountyRef. CountyRef. CountyRef.
AdamsH Dolores  La Plata  Pitkin 
Alamosa  DouglasH Lake  Prowers * 
ArapahoeH Eagle  Larimer *  Pueblo * 
Archuleta  El Paso *  Las AnimasH Rio Blanco 
BacaH ElbertHMS14 LincolnH Rio Grande 
BentH Fremont  Logan  Routt 
BoulderH Garfield  Mesa  Saguache 
Chaffee  Gilpin  Mineral  San Juan 
CheyenneEB3 Grand  Moffat  San Miguel 
Clear Creek  Gunnison  Montezuma  Sedgwick 
Conejos  Hinsdale  Montrose  Summit 
Costilla  Huerfano  Morgan *  Teller 
Crowley *  Jackson  OteroH Washington 
Custer *  JeffersonLJL1 Ouray  Weld * 
Delta  Kiowa *  Park  Yuma 
DenverH Kit Carson *  Phillips 
Map of Colorado
Color Key
Adams Alamosa Arahapoe Archuleta Baca Bent Boulder Chaffee Cheyenne Clear Creek Conejos Costilla Crowley Custer Delta Denver Dolores Douglas Eagle El Paso Elbert Fremont Garfield Gilpin Grand Gunnison Hinsdale Huerfano Jackson Jefferson Kiowa Kit Carson La Plata Lake Larimer Las Animas Lincoln Logan Mesa Mineral Moffat Montezuma Montrose Morgan Otero Ouray Park Phillips Pitkin Prowers Pueblo Rio Blanco Rio Grande Routt Saguache San Juan San Miguel Sedgewick Summit Teller Washington Weld Yuma