Class A First-hand BFRO #1587

Loud vocalizations sounds heard

May 1990 11:00 P.M., dark and clear Yelm, Thurston County, Washington 13 witnesses

Account

During a nighttime military training bivouac near Cat Lake, the witness heard huffing and barking sounds approaching down a moonlit hillside with shaking and falling trees. A large upright man-like form with broad shoulders stepped into the clearing, huffed loudly, then ran upright across the clearing with swinging arms and heavy steps felt in the ground. The platoon woke, packed rapidly, and moved away, and a daylight check found knocked-over trees and disturbed soil but no prints.

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.

Sightings

Physical traces

Other senses

Described appearance

In the source's own words, field by field. Hover a field's marker to see where it was read.

Build src
very heavy looking, broad shoulders
Arms src
swung it's arms in large arcs
Gait src
loping and heavy upright run
Posture src
up-right, very man-like
Age / size src
large

Facts & provenance

Each value names where it came from.

Date
May 1990
Stated BFRO report #1587 · BFRO report, labelled fields: Year, Month
Time of day
11:00 P.M., dark and clear
Stated BFRO report #1587 · BFRO report, “Time And Conditions” section
Place
Yelm, Thurston County, Washington
Stated BFRO report #1587 · BFRO report, labelled fields: State, County, Nearest Town, Location Details, Nearest Road
Map point
46.95, -122.69 (± 1000 m)
Stated BFRO map layer · BFRO published map layer · read with 85% confidence
BFRO map layer point for report 1587 (4 decimals, no boundary)
Account type
First-hand
Stated BFRO report #1587 · BFRO report, “Observed” section
Witnesses
13
Stated BFRO report #1587 · BFRO report, “Observed” section · read with 80% confidence
Figures reported
1
Derived BFRO report #1587 · BFRO report, “Observed” section
Witness was
on military surveillance training exercise, bedding down for the night
Stated BFRO report #1587 · BFRO report, “Observed” section
Witness's word for it
large up-right form
Stated BFRO report #1587 · BFRO report, “Observed” section
Source classification
Class A
Stated BFRO report #1587 · 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.

Tree damage

several knocked-over trees and fresh turned-up dirt on hillside found on daylight return, no prints located

BFRO report, “Observed” section
Tree damage

The witness and a teammate returned in daylight and found knocked-over trees and disturbed soil but no prints.

BFRO report, “Observed” section
Follow-up

The witness and a teammate returned in daylight and found knocked-over trees and disturbed soil but no prints.

BFRO report, “Observed” section

Source timeline

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

  1. Published 1999-08-08 Retrieved 2026-09-24 Version 1 Hash 4287e200227b
    BFRO - Bigfoot Field Researchers Organization
  2. BFRO map layer Reference
    Retrieved 2026-09-24 Version 1 Hash cfb8a3d423b7
    BFRO - Bigfoot Field Researchers Organization

The report refers to

  • “Cat Lake Monster”
    Not in the Anomadex yet