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22 encounters
13 June 2012 Silverthorne, Summit County, Colorado Class A #42602

Backpackers hear growls, knocking and observe two large, hairy bipeds at Surprise Lake

The witness and a companion were camped at Surprise Lake at dusk when they heard patterned knocks and rock-on-tree sounds. After the witness threw a rock against a tree and heard a similar sound returned, they saw a large brownish-red animal squatted and swaying behind a tree upslope. They attempted blurry photos while knocks were heard from behind the camp and from the animal's direction before leaving at first light.

Partial sightingWood knockRock throwing
May 2012 Bailey, Park County, Colorado Class A #35596

Early evening sighting by two women hiking in Bailey

Two women on an evening hike heard a loud branch break and saw a large bipedal figure running parallel to them through the forest and down a hill. They watched it for several seconds as it moved very fast with long strides and a forward lean, making no running noise despite dry ground cover. Both described it as tall, bulky and covered in dark grey to black hair, concluding it matched a bigfoot and was not a human or common animal.

Partial sightingUnidentified sound
31 August 2009 Burns, Eagle County, Colorado Class A #27075

Bowhunter witnesses woodknocking behavior outside the town of Burns

The witness was bow-hunting elk and reported hearing knocks timed to his steps near a clearing in the afternoon. He then watched through binoculars as a large hair-covered figure struck a log against a dead tree. As he left, knocks continued and he heard a log thrown nearby, later noticing a rancid black puddle on the trail.

Partial sightingWood knockObject throwingOdor
June 2009 Platoro, Conejos County, Colorado Class A #27057

Former Deputy Sheriff describes morning sighting on Cornwall Mountain

The witness stopped while riding an ATV on a logging road in the early morning and heard two loud howls. Shortly after the second howl he saw a large dark shaggy human-like figure downslope with its hands around an aspen tree, leaning out and staring at him. After several minutes of remaining motionless the figure turned and walked away downhill, and the witness left the area.

Partial sightingHowl
30 June 2008 Durango, San Juan County, Colorado Class A #32905

Hiker has a possible daytime sighting near Crater Lake

The witness was hiking a mountain trail with three children who had run ahead. He noticed a large upright hairy figure moving behind the treeline about 50 to 100 yards away, watching it for less than a minute as it moved through brush and woods. He did not alert the children at the time and did not photograph it. About a year later after seeing a television program about similar sightings in the area, he decided to share the experience.

Partial sightingSilhouette
November 2001 Eagle, Eagle County, Colorado Class A #3636

Nighttime sighting of two furry bipeds in Eagle River during snowstorm

The witness was driving west on a snowy highway at night when headlights revealed two upright, furry figures walking in the middle of the river. The witness pulled over and watched them from about 30 feet away, noting human-like shape with long arms, elbows and knees, and a face-to-face look with the nearer one. After passing them and getting out to look upriver, the witness waited several minutes but the figures did not reappear around the bend, then drove home.

Partial sighting
6 August 2001 Mancos, Montezuma County, Colorado Class A #3086

Large creature leaves 12"+ handprints on camper trailer during rainy night

The witness and three companions camped over multiple rainy nights. They heard persistent huffing and a growl, experienced silence and a sense of being watched, and reported a dark shape blocking a camper window. When leaving they later found muddy primate-like handprints high on the camper and a trailer lock twisted and broken.

VocalizationGrowlWood knockPartial sightingHandprint +5
30 June 2001 El Paso County, Colorado Class A #3710

Daytime sighting by Pike's Peak tourist

While stopped at a picnic-area parking lot on the Pike's Peak road, the witness stood atop a large rock formation while a parent prepared to take a photograph from below. The witness reported noticing a black, large-bodied creature in motion about 100 feet behind the parent and shouted for the parent to look, but the parent did not turn. The creature was gone within a few seconds. The witness stated the animal was not a bear.

Partial sighting
20 February 2001 Basalt, Pitkin County, Colorado Class A #3653

Daytime sighting by hiker, off West Sopris Creek Road

The witness was hiking with dogs on a packed snow trail when other dogs began barking at something ahead. He saw a gorilla-like furry creature sitting in the shade of a pine about 50 yards away watching the dogs. After he tripped in a snow hole, the creature left over the ridge, showing only the back of its head. Deep snow prevented him from following or finding tracks.

Partial sighting
8 August 2000 Bakerville On I-70/U.S. 6, Clear Creek County, Colorado Class A #408

Daylight sighting by hikers in the Loveland Pass area (Cont. Div.)

Two hikers with a dog descended from the continental divide into a boggy meadow beside a large stream. They heard noises from the opposite bank and then saw a large hairy brown-and-black animal watch them for several seconds. The animal then moved away downstream through brush on two legs with a long loping gait. The witness noted the dog remained calm, unlike its usual reaction to wild animals.

Partial sightingUnidentified sound
August 2000 Aspen, Pitkin County, Colorado Class A #470

Late night sighting by backpacker near Crater Lake

During a multi-day backpacking trip the witness left his tent at night and saw large green-glowing eyes about 70 feet away on the trail. The figure appeared over eight feet tall, stood on two legs, and had a very large head. After staring for about 30 seconds and being lit by a headlamp, it blinked, turned and walked out of sight.

EyeshinePartial sighting
August 2000 Lake City, Hinsdale County, Colorado Class A #2110

Backpacker meets an 8-foot hairy biped standing behind tent

The witness was camped alone in a remote meadow with pack goats and dogs while tending a sick animal. At dusk the animals became alarmed and the witness exited a tent to see a tall erect chestnut-furred figure about 12 feet away staring directly. After a mutual stare the figure made a low rumble, a second figure was glimpsed behind it, and both left quickly with ground vibrations felt. The witness remained overnight without further incident and left the next morning.

Partial sightingVocalization
December 1999 Colorado Springs, El Paso County, Colorado Class A #3506

Trucker has nighttime roadside sighting south of Colorado Springs near Ft. Carson

The witness was driving a tractor-trailer south on a dark highway in the early morning when headlights lit a figure on the east side of the road. The figure first appeared bent over, then stood upright as the truck approached, showing wide shoulders, an ape-like face, and yellow eyeshine. The witness passed at highway speed within moments and could not discern fur color.

Partial sightingEyeshine
July 1998 San Isabel, Custer County, Colorado Class A #14814

Father and son nighttime roadside sighting in the Wet Mountains southwest of Pueblo

While driving on a forest road in the early morning to find a campsite, the witness and a relative noticed an orange glow in a roadside stand of trees. As they drove past, the witness saw a tall erect human-like figure standing behind a large rock close to the road, turning its head and upper body to watch the truck. They did not stop, continued to a lake to wait for daylight, then returned in the morning to examine the site and take photos.

Partial sightingEyeshine
November 1997 Manitou Springs, El Paso County, Colorado Class A #1359

Multi-witness account of an observation of a strange creature on a ridge

The witness claims to have been stopped in snow-related traffic on Highway 24. After stepping out of the vehicle, the witness noticed another stopped motorist pointing toward a hillside. The witness then observed a creature on a ridgeline about two hundred feet above the highway but could not follow it due to ice and fear.

Partial sighting
1 November 1995 Boulder, Boulder County, Colorado Class A #13411

Man recalls a nighttime sighting while viewing the city lights in Chataqua Park

In November 1995 the witness stood alone at night in Chautauqua Park overlooking the city lights when a rustling sound drew attention to a large hairy human-like silhouette about 30 meters away. The figure reportedly watched briefly, then ran with a hunched-over loping gait toward tree cover and disappeared behind a tree. The witness considered it a possible bigfoot sighting.

SilhouettePartial sightingUnidentified sound
2 July 1991 Rangely (Maybell), Moffat County, Colorado Class A #1368

witness saw man-like creature covered with dark red hair while hiking in the extreme eastern part of Dinosaur National Monument.

The witness had walked from camp toward a rock promontory near the Yampa River canyon. A man-like figure covered in dark reddish-brown hair approached along the cliff edge from about 100 feet away. When it noticed the witness it retreated into juniper and pinyon, making scrambling noises as it left.

Partial sightingMovement only
1981 Teller County, Colorado Class A #1376

Man sees large creature while working the late shift at a mine.

The witness's relative was working alone on the graveyard shift at a mine, checking pond equipment on nightly rounds. After locking a building and walking toward the truck, he reportedly saw a huge bipedal creature he insisted was not a bear. Frightened and crying, he ran back inside and called relatives by phone to come help and stay on the line to keep him calm.

Partial sighting
September 1978 Between Buffalo Creek And Bailey, Jefferson County, Colorado Class A #7225

Picnicker has daytime sighting outside Buffalo Creek

In 1978 the witness was picnicking with family near Wellington Lake in the afternoon when she saw a white-furred bipedal creature about 60 feet away. The creature repeatedly stepped out from behind a boulder and ducked back as a companion turned to look, repeating this four to five times before disappearing. The companion never saw it. The creature alternated between bipedal and stooped postures and moved swiftly and silently, striking the witness as playful rather than frightening.

Partial sightingAnimal behaviour
1 May 1977 Montrose, Montrose County, Colorado Class A #1075

Teens fire at big black thing peeking in window of home

The witness and a companion were alone at the witness's parents' house at night when they saw a head looking in through the front door. They retreated to a bedroom without curtains where they heard breathing and scratching and saw a hairy hand against the window screen. The companion fired two shots that missed, and the figure ran away. A sheriff who responded found bullet holes but no blood or footprints.

Partial sightingDoor or window contactUnidentified sound