Western Hognose Snake
Heterodon nasicus

Family Colubridae

Adults 16" to 35" in length. Color light brown, with dorsal row of dark brown blotches. Row of smaller blotches on sides. Stout body; scales keeled. Enlarged and upturned scale on nose, giving snout a spade-like appearance (hence 'hognose' snake). Divided anal plate.
Elevation Range:
Below 6000' in eastern Colorado.
Subspecies in Colorado:
Heterodon nasicus nasicus
  Western Hognose Snake
Photo from Hammerson, 1986.
Used with permission.
CountyRef. CountyRef. CountyRef. CountyRef.
AdamsH Dolores  La Plata  Pitkin 
Alamosa  DouglasCAT1 Lake  ProwersH
ArapahoeH Eagle  LarimerH PuebloH
Archuleta  El PasoH Las AnimasH Rio Blanco 
BacaH ElbertH LincolnH Rio Grande 
BentH Fremont *  LoganH Routt 
Boulder *  Garfield  Mesa  Saguache 
Chaffee  Gilpin  Mineral  San Juan 
CheyenneH Grand  MoffatJJR1 San Miguel 
Clear Creek  Gunnison  Montezuma  SedgwickH
Conejos  Hinsdale  Montrose  Summit 
Costilla  HuerfanoH MorganH Teller 
CrowleyH Jackson  OteroH WashingtonH
CusterH JeffersonH Ouray  WeldH
Delta  KiowaH Park  YumaH
DenverH Kit CarsonH PhillipsH
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