7. North Dakota
The only venomous snake among 8 snake species in North Dakota is the prairie rattlesnake (Crotalus viridis). It is spread only in western part of the state, west of the Missouri River.
The only venomous snake among 8 snake species in North Dakota is the prairie rattlesnake (Crotalus viridis). It is spread only in western part of the state, west of the Missouri River.