8 Most Rattlesnake Infested Areas in Colorado
Colorado is home to three species of rattlesnakes: the prairie rattlesnake (Crotalus viridis), the midget faded rattlesnake (Crotalus oreganus concolor), and the western massasauga rattlesnake (Sistrurus tergeminus). Each one has carved out a distinct niche across the state's remarkably varied terrain. The prairie rattlesnake is most widespread, showing up in grasslands, foothills, and shrublands below 9,500 feet. The midget faded rattlesnake sticks to the canyon country in western Colorado, near the Colorado and Green River basins. The massasauga is found only in the shortgrass plain of southeastern Colorado, where its population is declining.
These three species occupy different parts of Colorado, including several well-known public lands, where they help regulate prey populations and contribute to a healthy ecosystem. Knowing where they live and respecting their space helps make time outdoors safer.
Garden of the Gods
Garden of the Gods is built around the dramatic landscape of tilted red sandstone formations rising out of shortgrass prairie and scrubland. This 1,341-acre National Natural Landmark in Colorado Springs is home to a healthy population of prairie rattlesnakes.
The sandstone outcroppings are prime basking spots. The area just east of the main formation cluster, known locally as Rattlesnake Ridge, is particularly active. Arid regions such as Niobrara Ridge are also hotspots. Staying on the paved route of the Perkins Central Garden Trail can keep encounters less likely.
Garden of the Gods is squarely within the prairie rattlesnakes' Front Range territory. If planning on venturing into the park's outback, just remember to scan the ground in front of you and calmly back away if you spot a snake.
Roxborough State Park
Roxborough State Park is about 3,400 acres of public land southwest of Littleton. It's in a transitional zone where grasslands, scrub oak, and the Front Range foothills collide around dramatic tilted red sandstone formations. This is an environment that prairie rattlesnakes particularly favor. These transitional spaces support an abundance of diverse prey.
The warm rock slabs and dense grass in these areas create ideal basking and hunting habitats. The South Rim Trail passes through scrub oak stands and rocky outcrops where rattlesnakes are present during the warmer months.
North Table Mountain Park
North Table Mountain Park is a Jefferson County Open Space property featuring a flat topped basalt mesa rising 500 feet above the surrounding plains. Its summit prairie, steep slopes, and small ponds fed by seasonal springs create an ecosystem that suits prairie rattlesnakes well. Prairie rattlesnake populations are dense enough here that researchers have conducted formal movement studies around the mesa.
Snakes can be spotted across this 2,000-acre park along the North Table Loop Trail and the Tilting Mesa Trail, particularly in morning hours when they emerge to warm up on sun exposed rocks and packed dirt. The mesa's isolated, open character makes it one of the more concentrated habitats on the Front Range.
Colorado National Monument
Colorado National Monument is a 20,500-acre park west of Grand Junction. It features deep red rock canyons, sandstone monoliths, and a semi desert landscape of pinyon pine and juniper. It is the primary Colorado stronghold for midget faded rattlesnakes, the rarest and most venomous of the state's three species. The monument is an ideal habitat for these elusive snakes. Their muted, pale coloring blends almost perfectly into the sandstone terrain.
The Serpents Trail, an old road that switchbacks up the canyon wall, passes through sunwarmed rock surfaces that midget faded rattlesnakes use for thermoregulation. In the spring and fall, these snakes bask on trails and hard surfaces, making the Rim Rock Drive corridor worth watching closely during those seasons.
Mesa Verde National Park
Mesa Verde National Park spreads across southwestern Colorado. This high plateau consists of pinyon and juniper woodlands, canyon walls, and open mesa tops. The park is home to prairie rattlesnakes, a species that favors crevices, sunny hillsides, and arid scrublands.
The Soda Canyon Overlook Trail passes through terrain that combines scrub forests with abundant rock cover. These conditions are ideal for prairie rattlesnakes. Most sightings happen in the afternoon when snakes bask on exposed rocks, particularly along less visited trails.
Prairie rattlesnakes at Mesa Verde play a direct role in managing the park's rodent populations. This in turn supports the broader predator community of hawks and foxes that depend on the same food source.
Lake Pueblo State Park
At 4,800 feet elevation, Lake Pueblo State Park is just west of Pueblo, featuring a reservoir with 60 miles of shoreline. Limestone buttes, high desert terrain, and the Arkansas River canyon form the landscape below the dam. The park's dry, rocky landscape and abundant rodent populations make it a productive hunting ground for prairie rattlesnakes.
The Skull Canyon Trail drops into a narrow canyons where shaded crevices create environments that rattlesnakes use for both hunting and shelter. Pedros Point Loop travels through open scrubland and along rocky ridgelines above the 4,600-acre reservoir. In this area, sun-warmed rock outcrops give rattlesnakes reliable basking spots.
Comanche National Grassland
Two separate units near La Junta and Springfield make up Comanche National Grassland, totaling about 440,000 acres of shortgrass prairie and canyon country in southeastern Colorado. This is the heart of western massasauga rattlesnake territory in Colorado. The area is also home to prairie rattlesnakes.
Shortgrass prairie and rocky areas within the grasslands are prime rattlesnake habitats. The four-trail Vogel Canyon network drops into a sheltered canyon where permanent springs, canyon walls, and a pinyon-juniper canopy create supportive habitat. The rimrock in Picture Canyon is also notable rattlesnake territory with south-facing cliff bands that warm quickly in the morning sun.
The western massasauga is a species of speical concern in Colorado. The southeastern grasslands represent one of its last remaining strongholds, making Comanche National Grassland an important site for its long-term survival.
Eldorado Canyon State Park
Eldorado Canyon State Park is southwest of Boulder. Across the landscape, steep sandstone canyon walls drop to South Boulder Creek and a network of trails cuts through scrub forests, talus slopes, and open hillsides. The park's position at the junction of the plains and the Front Range foothills makes it an excellent prairie rattlesnake habitat.
The Rattlesnake Gulch Trail passes through sun-exposed terrain where snakes can bask in warm months. The talus fields and craggy outcrops along the lower Fowler Trail corridor also support rattlesnake activity where they can hide among loose rocks.
Rattlesnakes in Eldorado Canyon benefit from the park's relatively undisturbed talus fields and the steady population of small mammals that move through the riparian corridor.
Where the Ground Keeps Its Warning
Rattlesnakes are not merely incidental to Colorado's public lands. They are an integral part of them, keeping prey populations in check and supporting the broader food web that sustains a host of other wildlife.
Parks are healthier because these snakes are present. Sharing a trail with a rattlesnake means the ecosystem is intact. These environments are deeply intertwined with the animals that shaped them long before trails were built. Giving snakes space, respecting their ecological role, and remaining observant of hiking surroundings makes coexistence possible.
