Wildlife

Beaver in Canyonlands National Park

Wildlife
Beaver

What an absolute engineer! American beavers transform rivers with their dams and lodges—one of nature's most industrious builders. These semi-aquatic rodents work tirelessly through the night, reshaping habitat and creating wetlands that support entire ecosystems. Spot them at dusk along Canyonlands' rivers for a glimpse of nature's construction crew in action!

Quick facts

Scientific Name
Castor canadensis
Species Type
Mammal
Conservation Status
Common
Size Weight
30–60 lbs; some larger individuals reach 70 lbs. Body length 3–4 feet including flat tail.

Species profile

Scientific Name
Castor canadensis
Species Type
Mammal
Conservation Status
Common
Size Weight
30–60 lbs; some larger individuals reach 70 lbs. Body length 3–4 feet including flat tail.
Lifespan Wild
5–7 years typically in the wild
Identifying Features
Large front teeth (orange-tinted), flat paddle-shaped tail, stocky body, brown fur, webbed hind feet, chunky appearance

Where & when to look

Where To See
Along the Colorado River, Green River, and tributary streams throughout Canyonlands. Look for dam sites and lodges in river valleys, particularly visible from Colorado River Overlook and Green River Overlook.
Best Viewing Times
Sunset through dusk (approximately 6–8 PM in summer), and dawn (approximately 5–7 AM)
Sighting Frequency
Uncommon—nocturnal and elusive, but signs of activity (dams, chewed trees, lodges) are visible year-round along rivers.
Habitat Description
River valleys and streams with accessible trees and flowing water. Lodges built from sticks and mud along water's edge.
Activity Pattern
Nocturnal/Crepuscular—most active at dusk and dawn, resting in lodges during daylight.
Migration Patterns
Sedentary—establish territories along water bodies and remain unless displaced by drought or habitat loss.
Hibernation Info
No true hibernation. Remain mostly inside lodges during winter but stay active underwater, storing food caches on the river bottom.

Wildlife safety

Dangerous
0
Viewing Distance Required
25 yards minimum (park safety standard for herbivores)
Safety Precautions
Maintain 25-yard distance minimum. Never approach or feed. Beavers may bite if cornered. Speak calmly if encountered; they typically flee. Stay on designated trails near water.
If Encountered
Back away slowly and speak calmly. Beavers typically flee from humans. If one stands its ground, retreat further and give it an escape route.
Never Feed Approach
1
Report Sightings
1
How To Report
Contact Island in the Sky Visitor Center or any ranger station. Report sightings, dam damage, or unusual activity to help park staff monitor beaver populations.

Photography & conservation

Best Photo Locations
River overlooks including Colorado River Overlook and Green River Overlook. Maintain 25+ yards from water's edge for safety and to avoid disturbing beavers.
Recommended Equipment
Binoculars (essential for 25-yard viewing), telephoto camera lens (200mm+), flashlight for early morning/dusk, field guide for identifying signs.
Ethical Photography
Don't bait with food or vegetation. Maintain 25-yard minimum distance. Don't disturb dam sites, lodge areas, or stored food caches. Avoid blinding with flashlights; use red light or minimal illumination for twilight photography.
Conservation Threats
Water diversion and drought (threatens river habitats), habitat loss, climate impacts on water availability.
Protection Efforts
Protected within national park boundaries; habitat management focuses on maintaining water flow and riparian vegetation.
How Visitors Help
Stay on designated trails to avoid trampling habitat. Keep noise down near water. Report significant beaver activity to rangers. Never feed or approach. Respect dam sites and lodges as active homes.

Viewing advice

Best Time To Visit
Dusk to sunset and one hour before sunrise when beavers are most active
Viewing Tips
  • Arrive at river overlooks 30 minutes before sunset
  • Be absolutely quiet—beavers flee at sudden sounds
  • Scan water surfaces for ripples and activity
  • Look for freshly chewed trees and lodge structures
  • Listen for splash sounds and tail slaps on water
  • Early morning often better than evening for sightings
Tips Advice
  • Visit river areas during twilight hours (dusk and dawn)
  • Stay quiet and still—patience wins
  • Look for telltale signs: felled trees, dam debris, stick lodges
  • Never block river access or disturb active dam sites
  • Binoculars are essential to maintain safe distance
Accessibility
Not easily visible from vehicle. Requires hiking to river valleys or viewing from river overlooks during twilight hours.
Family Friendly Notes
Generally safe to observe from proper distance. Kids love learning about engineering behavior. Keep young children close, remind them to stay quiet and on trails. Note: Beavers are nocturnal, so evening visits work best but require planning.

More details

Lifespan Captivity
20+ years in captivity
Diet
Aquatic vegetation, tree bark (prefer birch, willow, aspen), herbaceous plants, water lilies.
Breeding Season
December–January (mating); spring births (May–June). Family groups stay together year-round.
Nearby Facilities
Island in the Sky Visitor Center (primary hub); ranger stations at Island in the Sky and The Needles District for additional information.

Frequently asked questions

Will a beaver attack me?

Extremely unlikely. Beavers avoid humans and flee at approach. They'll only bite if trapped or protecting young—maintain 25 yards and they'll leave.

Can you see beavers during the day?

Rarely—they're nocturnal. You may spot one resting on the bank in early morning, but dusk and dawn offer the best odds.

What do beavers eat?

Tree bark (especially birch, willow, aspen), water plants, and aquatic vegetation. They don't eat fish or meat.

Why do beavers build dams?

Dams create deeper water for lodges, provide protection from predators, and help store food. It's pure engineering genius!

Are beavers endangered?

No—they're common and widespread across North America. Once hunted to near extinction, they've made a remarkable recovery.

How can I tell if beavers are present?

Look for felled trees with pointed ends, stick dams across streams, large lodge mounds, and fresh wood chips and shavings.

Where in Canyonlands are beavers most likely?

Along the Colorado River, Green River, and tributary streams. River overlooks and trails near water offer the best viewing.

Bald Eagle

White-headed river hunter and conservation triumph. Recovered from near-extinction. Keep 25 yards distance!

Bighorn Sheep

Cliff-scaling champions with giant curved horns. Peaceful grazers, 25-yard rule.

Black Bear

Absolute unit roaming Canyonlands! Keep 100 yards back.

Bobcat

Elusive nocturnal hunter—spot one and earn bragging rights!

Coyote

Desert night-howler! Hear them more than you'll see them—these clever hunters own the rocks.

Elk

Hear the legendary bugle calls! 1,000-pound elk drama during fall rut—watch from 25 yards away.

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Sources

  • YourNPGuide Editorial

Editorial review: YourNPGuide Editorial Team. Information is compiled from official sources, verified traveler reviews, and editorial research; no firsthand visit is implied unless explicitly documented. Learn how YourNPGuide works.

Last updated July 2026. Report an issue.