Class B First-hand BFRO #3759

Elk hunters encounter large animal and hear vocalizations near Rimrock Lake

29 October 2001 about 2:30 a.m. Yakima, Yakima County, Washington

Account

Three hunters were sleeping in a tent at an elk hunting camp when one stepped out around 2:30 a.m. to urinate and swept a flashlight around the perimeter. An unseen animal nearby emitted an extremely loud, long scream lasting about 10-12 seconds and fled through dense timber up a steep ridge, continuing to scream from a great distance. The sound woke multiple nearby camps and was described as unlike any bear or cougar, and no sign was found the next morning on frozen ground.

Summary drafted by AI from the source report and checked by code before I publish it. The witness's own words remain with the publisher — read the original report .

What was reported

Every kind of observation in the account. Select one to find other encounters with it.

Sounds

Facts & provenance

Each value names where it came from.

Date
29 October 2001
Stated BFRO report #3759 · BFRO report, labelled fields: Year, Month, Date
Time of day
about 2:30 a.m.
Stated BFRO report #3759 · BFRO report, “Time And Conditions” section
Place
Yakima, Yakima County, Washington
Stated BFRO report #3759 · BFRO report, labelled fields: State, County, Nearest Town, Location Details, Nearest Road
Map point
46.62, -121.06 (± 1000 m)
Stated BFRO map layer · BFRO published map layer · read with 85% confidence
BFRO map layer point for report 3759 with published boundary
Account type
First-hand
Derived BFRO report #3759 · BFRO report, “Other Witnesses” section · read with 70% confidence
Figures reported
1
Derived BFRO report #3759 · BFRO report, “Follow-Up” section · read with 75% confidence
Witness was
camping overnight in tent during elk hunt, sleeping
Stated BFRO report #3759 · BFRO report, “Follow-Up” section
Witness's word for it
the creature
Stated BFRO report #3759 · BFRO report, “Observed” section
Source classification
Class B
Stated BFRO report #3759 · BFRO classification label

Evidence & investigation

What the source says was found or done. Claimed evidence is listed as claimed; the Anomadex has not examined it.

Follow-up

An investigator interviewed witnesses from the incident camp and a nearby camp and checked reported weather and moon conditions.

BFRO report, “Follow-Up” section

Source timeline

Every record this entry is built from, earliest known first. Records are versioned and never edited in place.

  1. Published 2002-02-12 Retrieved 2026-09-24 Version 1 Hash e3b70bf5f862
    BFRO - Bigfoot Field Researchers Organization
  2. BFRO map layer Reference
    Retrieved 2026-09-24 Version 1 Hash cfb8a3d423b7
    BFRO - Bigfoot Field Researchers Organization