• Capulin Volcano National Monument by J. Unruh

    Capulin Volcano

    National Monument New Mexico

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  • Road Work

    Expect delays due to road work on HWY 64/87 west of Capulin, between Capulin and Raton, NM.

  • Picnic Area Restrooms Closed

    Restrooms at the picnic area are temporarily closed. The restrooms in the Visior Center and in the Volcano Rim parking lot are open. Sorry for the inconvenience.

Reptiles and Amphibians

Reptiles and amphibians are cold-blooded animals whose bodies take on the temperature of their surroundings. They may be seen basking in the sun on warm rocks that make up the mountain. Cool nights usually send them into burrows or crevices to keep warm.

Several species of snakes and lizards inhabit the monument. Amphibians are somewhat less numerous since there is no permanent water source in the park.
color photograph of bull snake in dirt


NPS photo

The Bullsnake (Pituophis melanoleucus ssp. affinis), also known as the gopher snake, is non-venomous and widespread throughout North America. A bullsnake can grow to a length of 4 to 8 feet, and is tan with darker brown blotches on the back and a banded black and tan tail. This snake, while looking similar to the rattlesnake, often acts like a rattler as well; when threatened, the bullsnake will hiss, flatten its head, and shake its tail. Unfortunately, this leads to many humans killing bullsnakes, believing that is indeed a rattlesnake. The Bullsnake frequents deserts, prairie, brushland, woodland, coniferous forests, and farmland. It is active chiefly by day, except in hot weather.

Western prairie rattlesnake.

NPS Photo

Western Prairie Rattlesnake (Crotalus viridis)—a heavy-bodied, venomous snake with a slender neck and broad triangular head. Coloration varies but is generally light brown with brownish diamond-shaped blotches down the midline of the back, generally edged with dark brown or black. Adults range from 1 to 5 feet long. It is most commonly found in the monument in open desert country, rocky hillsides, and overgrazed shortgrass prairies.
Color photograph of lizard on lichen covered rock.

Lesser Earless Lizard

NPS photo

The Lesser Earless Lizard (Holbrookia maculata) is a 4"-5" gray to brown lizard with the color depending upon the color of the earth it inhabits. It is diurnal and may have no external ears since it burrows headfirst into the soil.
Color photograph of Plains Spadefoot toad.

Plains Spadefoot

NPS photo

The Plains Spadefoot (Scaphiopus bombifrons) is a stout toad with a sharp-edged spade on the inside os each hind foot. This is used to push soil aside as the toad burrows in the ground. These toads are nocturnal.
Complete wildlife surveys have not been done in the park. These checklists are the best information we have at this time.

Checklist of Reptiles and Amphibians - 1973

Checklist of Reptiles and Amphibians - 2002

Did You Know?

Black bear

Despite its small size, roughly 800 acres, Capulin Volcano National Monument still has predators that hunt within the park’s boundaries. These predators include both Black bear and Cougar.