Snake FinderField Guide · Worldwide

Know the dangerous ones

Venomous snakes in Dawson County, Texas

3 venomous snake species have verified records in Dawson County. Learn to recognize each one, and know what to do if you are bitten.

Field entries

  1. Western Diamond-backed Rattlesnake
    Crotalus atrox
    Venomous

    How to identify

    Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.

    Rarely seenFull profile →
  2. Prairie Rattlesnake
    Crotalus viridis
    Prairie Rattlesnake

    Crotalus viridis

    Venomous

    How to identify

    Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.

    Rarely seenFull profile →
  3. Northern Cottonmouth
    Agkistrodon piscivorus
    Northern Cottonmouth

    Agkistrodon piscivorus

    Venomous

    How to identify

    Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.

    Rarely seenFull profile →

Looking for all snakes here, not just the venomous ones? See all snakes in Dawson County.