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7 encounters
12 March 2025 Hot Springs, Custer County, South Dakota Class B #79740

Mouth pops heard by Mountain Lion hunter near Custer State Park

The witness was concealed while hunting mountain lion and using a distressed-fawn predator call. From behind, the witness heard repeated knock-like or mouth-pop sounds from two directions, followed by deep mumbling described as an unfamiliar language. The witness saw nothing, moved into the open, then quickly hiked out and has not returned to the area.

Unidentified soundVocalization
June 2019 Rochford SD, Pennington County, South Dakota Class B #65588

Possible howls heard 4 miles north of Rochford in middle of Black Hills

The witness was staying alone at cottages beside fields edging forest and sitting outside in the evening. A loud sound described as between a howl and a scream came from the woods to the west and lasted 3-5 minutes. All farm animals reportedly froze and turned toward the sound, which the witness did not recognize from growing up in the area.

HowlScream
13 October 2012 Spearfish, Lawrence County, South Dakota Class B #63646

Camper describes stalking by Bigfoots near "Devil's Bathtub" in the Black Hills

The witness was camping alone in a tent in Spearfish Canyon. Late at night he heard a whistle-like sound, a tree-knock sound, and slow heavy bipedal footsteps approaching and passing his tent, accompanied by a strong unpleasant smell. He shouted at the presence and later woke to tree knocks and varied whooping sounds from multiple directions lasting about 15 minutes, and found no sign in the morning.

WhistleWood knockFootstepsOdorWhoop
22 June 2008 Deadwood, Lawrence County, South Dakota Class B #25415

Possible nighttime visit while camping in the Black Hills of South Dakota

The witness was sleeping alone in a tent at a secluded creek-side camp in June 2008. Around 3:11 a.m. the witness awoke to total silence, then heard splashing and movement in the stream to the north and west, followed by a patterned sequence of loud rock-on-rock smacks. The witness loaded a weapon and waited, heard nothing further, and left at sunrise without checking for tracks. Months later, after seeing a program about primates using rocks to communicate, the witness wondered if the visit had been by an unrecognized primate.

FootstepsUnidentified sound
18 February 2008 7 Mi South-Southwest From Rapid City, Pennington County, South Dakota Class B #23214

Unusual howls recorded in the Black Hills southwest of Rapid City

The witness returned home in the evening and heard an unfamiliar ululating howling sound with an echo off a nearby cliff. The witness recorded about 4.5 minutes of the sound. With decades of outdoor experience, the witness did not recognize it as any known local animal and noted dogs reacted negatively.

Howl
August 2003 Custer, Custer County, South Dakota Class B #19350

Camp counselor describes unusual incidents near Custer

The witness and a companion had returned to shore after late-night canoeing and were talking by the lake. The witness noticed a tall, fuzzy, person-like figure standing uphill by a pine tree and watched it about 30 seconds before alerting the companion. The companion turned after their friend passed under a light, and the figure stepped behind the tree and vanished without being seen by the companion.

Partial sightingSilhouette
4 April 1986 Aberdeen, Brown County, South Dakota Class B #1445

Teenagers hear strange sounds near Aberdeen

Two friends were talking late at night in a farmhouse basement with the windows open when they heard a strange screeching or howl-like sound from a nearby field. They looked out the window but saw nothing, and the sound continued intermittently for about ten minutes. Neither could identify it as any known wildlife or farm animal, and a brief search the next day found nothing.

ScreamHowl