Phenology Project
Snakes of Harding County, South Dakota
Bullsnake
Pituophis catenifer
Last recorded in 2012
Plains Garter Snake
Thamnophis radix
Last recorded in 2010
Prairie Rattlesnake
Crotalus viridis
Last recorded in 2010
Western Hognose Snake
Heterodon nasicus
Last recorded in 2010