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53 encounters
September 2005 Capulin, Conejos County, Colorado Class B #19804

Hunter reports unusual roars In South San Juan Mountains

In late September 2005 the witness was camped at Jacob's Hill and sitting by the fire when a loud throaty wailing roar lasting about 5-10 seconds came from timber between meadows. Coyotes in several nearby spots immediately began howling and yelping as if disturbed. The witness did not hear the sound again during that trip.

VocalizationHowl
1 August 2004 Crested Butte, Gunnison County, Colorado Class B #16038

Possible camp stalking at Taylor Reservoir outside Aspen

The witness and his wife were bedded down in their pop-up camper at night when they heard lapping sounds and their skillet rattling outside. The witness opened the camper door expecting a bear and saw a large dark upright shape about forty feet away moving swiftly into the timber. The camper shook strongly as the animal left while nearby dogs barked. In the morning no tracks were found and they could not recreate the shaking.

SilhouetteProperty disturbanceUnidentified sound
1 June 2004 Bayfield, Archuleta County, Colorado Class B #9018

Campers driven off mountain by unseen intruders

Three campers were around a late-night campfire when they heard repeated series of deep two-tone howls from hills to the north and south and a loud tree-impact sound. One source of howls moved from about 100 yards west to about 50 yards in the treeline, appearing to exchange calls with a distant source while crashing through brush toward camp. Alarmed, the group packed under guard and drove out, hearing the howls again from about a mile behind them. They later interpreted the incident as possibly involving three large communicating beings.

HowlWood knockFootsteps
Winter 2004 Steamboat Springs, Routt County, Colorado Class B #16661

Possible tracks found by snowshoers near Steamboat Springs

The witness and a companion were snowshoeing off trail and became stuck in a steep ravine. They found a trackway of large human-like footprints with a long stride ascending a very steep slope through deep snow. They judged the tracks unlike deer, elk, bear, or human due to depth, stride, and lack of drag marks.

Tracks
20 June 2003 Silverton, Dolores County, Colorado Class B #6538

Large tracks found in southwest Colorado mountains

The witness and his sister examined three large barefoot-like impressions found on a closed section of trail near timberline. The clearest impression showed a heel, arch, ball and five toes and was compared on video to a size-12 hiking boot. No animal was seen, and no further prints were found as the ground became harder toward the parked vehicles.

Tracks
October 2002 Woodland Park, El Paso County, Colorado Class B #6164

Hunter's elk calls ellicit vocal responses from multiple animals

The witness and a relative were elk hunting from a ridge overlooking beaver ponds near dusk and called for elk. In response they heard loud, prolonged howling and whining vocalizations from multiple animals on the opposite ridge, repeated over about 10-15 minutes. They also heard splashing and saw ripples on a pond but saw no animals, then left quickly for their vehicle.

HowlVocalization
31 August 2002 Leadville, Park County, Colorado Class B #4897

Family finds and hears compelling evidence near Leadville

A family hiking around a high-elevation lake above treeline near Leadville found footprint-like depressions in moss between glacial rocks and found additional depressions on further search. They also noted moss torn from boulders, chewed, and left in neat piles, and heard grouped rapping sounds on each of three visits over three days. They recorded the tracks and moss on video and made a cast of one track. No animal was seen.

TracksWood knock
November 2001 Victor, Teller County, Colorado Class B #3588

Hunting party hears vocalization, wood knocks; finds elk carcass, off Gold Camp Road near Victor, in Pike Nat'l Forest

While guiding two clients and accompanied by his wife on an elk hunt, the witness reported hearing a low guttural vocalization that he did not recognize as elk or bear. After moving to an aspen grove, the group heard loud repeated knocking sounds likened to logs or sticks hitting trees. The next day after snowfall, the witness returned and found a fresh cow elk carcass with its chest torn open and large indistinct tracks with a long stride nearby.

VocalizationWood knockTracks
4 September 2001 Leadville, Lake County, Colorado Class B #24194

Hiker describes possible near encounter on the Colorado Trail near Mt. Massive

After hiking Mt. Massive, the witness was walking toward the trailhead parking lot in daylight when he heard loud crunching footsteps moving away through dense trees to his right. The unseen source, estimated 100 to 150 feet away, produced two identical very loud deep resonant barks spaced about 20 to 30 seconds apart. He never saw the animal and heard nothing else. He first assumed a bear but later doubted it because the steps sounded bipedal and he found no matching bear sound.

FootstepsVocalization
September 2001 Conejos County, Colorado Class B #23065

Bowhunters report unusual encounters in the South San Juan Mountains

A bow hunter located his downed elk after dark and heard a large heavy animal moving nearby in brush. The animal circled him and stayed close despite shouting, then seemed to follow him as he hiked back to camp. After retrieving a handgun at camp he heard footsteps again and rushed toward them, hearing something crash away. The next morning he returned to find the elk carcass untouched.

Footsteps
12 May 2001 Lake George, Park County, Colorado Class B #2493

Family startled by overpowering cries near their rural home

Late at night the witness and her two children were eating at home when a very loud, prolonged cry was heard from near the front yard. The sound lasted several seconds and frightened the family, who froze and then moved upstairs to wait. No animal was seen and a later check reportedly found no tracks.

Vocalization
20 December 2000 Pagosa Springs, CO 81147, Archuleta County, Colorado Class B #1232

Family marvels at huge barefoot tracks in snow

Two relatives of the witness found two large barefoot-like prints in fresh snow off a road near their cabin and brought the witness to see them. He compared his size 10 1/2 shoe to one print and estimated it was about 14 inches long and twice as wide, with a slight arch curve. The prints were noted as fairly far apart, and the witness questioned who would be barefoot in that isolated area.

Tracks
September 2000 Eleven Mile Resevoir, Park County, Colorado Class B #1237

While standing on the deck of vacation home man hears eerie human-like calls

The witness was standing on a deck overlooking a reservoir in the morning when an extended human-like animal call was heard from a nearby forested area. The sound lasted several minutes and was described as spine-tingling, lost-sounding, and unlike anything heard during extensive hiking and camping experience. No animal was seen.

Vocalization
21 August 2000 Fairplay, Park County, Colorado Class B #529

Couple hears strange cry, finds big footprints in Pike National Forest near Fairplay

The couple reported hearing a very loud animal-like vocalization for about 20 minutes at night from their cabin. A few days later they found two large footprints in a wash near a marshy area a couple hundred feet from the cabin. They photographed the prints and estimated the first water-filled track at 16 to 18 inches long.

VocalizationTracks
19 August 2000 Eagle, Eagle County, Colorado Class B #1251

Threatening bellows directed at hikers and their dogs in the Holy Cross Wilderness

The witness and a companion were hiking a high-elevation trail with two dogs when they heard a very loud, rhythmic wailing and moaning sound from a pine cluster about 50-75 yards away. The sound lasted several minutes and seemed to move toward them, growing louder, which frightened the witness and held the dogs' fixed attention without prompting a chase. They left without seeing the source, and minutes later a ranger they met said she had also heard the unfamiliar sound.

ScreamHowl
19 April 2000 Chama, Conejos County, Colorado Class B #407

Possible vocalizations heard while motorists were taking a break at turnout near La Manga Pass

Four people stopped at a turnout on Highway 17 ascending toward La Manga Pass in the morning. After one person in the party gave a whoop, they heard three loud roar-like vocalizations with pauses between them. They saw no source and left quickly, later noting the sounds resembled an Ohio howl recording and acknowledging a human trick was possible.

VocalizationPossible hoax
Fall 2000 Fairplay, Park County, Colorado Class B #3112

UK Gypsies vacate Colorado campsite after encounter with 7' creature

A large group was gathered for a nighttime barbecue and fire at a forest clearing when a very loud high-pitched scream was heard from just outside the clearing. Moments later a very tall powerfully built ape-like creature covered in long beige hair with dark areas on the face and elbows was seen entering the clearing and then leaving at great speed. The group fled in panic leaving belongings behind, and a follow-up visit about a week later found no belongings or tracks.

ScreamFull-body sighting
4 August 1998 Park County, Colorado Class B #1369

faint groaning and growling vocalizations heard.

The witness and a companion heard loud distant howls from their tent while camping overnight on two consecutive nights. Dogs on nearby properties barked and stayed agitated after the sounds. On the second night they also heard faint groaning/growling and later heard shots from the surrounding area.

HowlGrowl
August 1998 Leadville, Lake County, Colorado Class B #3604

Rancher, wife startled by vocalizations near Leadville

A couple starting a barbecue fire at their ranch heard repeated deep, low-frequency hollers from the direction of the pasture tree line. Horses in the pasture ran toward the couple and appeared spooked. The couple put out the fire and left, estimating the source was no more than a quarter-mile away.

Vocalization
September 1997 Florissant, Teller County, Colorado Class B #25552

Multiple Tracks Found at Florissant Fossil Beds National Monument

The witness arrived early to hike a park nature trail after overnight rain and found elk tracks on the muddy path. On top of the elk tracks was a set of much larger barefoot human-like prints continuing in the same direction for dozens of feet. No other visitors had been on the trail, and the witness asked a ranger about the prints after looping back.

Tracks