South Dakota
Snakes in Lyman County
5 species have been documented here, 1 of them venomous.
Venomous snakes in Lyman County
Full guide & what to do if bitten →
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Lyman County
Plains Garter Snake
Thamnophis radix
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
North American Racer
Coluber constrictor
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Lyman County: FAQ
- Are there venomous snakes in Lyman County, South Dakota?
- Yes. 1 venomous snake species has verified records in Lyman County, South Dakota, including Prairie Rattlesnake. Most snakes in Lyman County, South Dakota, however, are harmless.
- How many snake species live in Lyman County, South Dakota?
- 5 snake species have verified records in Lyman County, South Dakota, of which 1 is venomous.
- What is the most commonly seen snake in Lyman County, South Dakota?
- The Plains Garter Snake is the most frequently reported snake in Lyman County, South Dakota, based on verified wildlife observations.
- What should I do if I see a venomous snake in Lyman County, South Dakota?
- Keep your distance and do not try to catch or kill it. Most bites happen when people handle or corner a snake. If someone is bitten, contact local emergency services or poison control immediately.