Class B First-hand BFRO #39851

Motorists have possible nighttime sighting in Green Belt Forest Preserve

August 2010 10 p.m. Matteson, Cook County, Illinois 2 witnesses

Account

A couple driving through a forest preserve at night with high beams on saw a large figure standing by a tree. They reported its head and shoulders turned to follow the car as they passed. They drove toward a nearby police station but decided not to report it, then later revisited the site in daylight.

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

Described appearance

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

Height src
between 8 and 9 feet tall
Build src
huge, over 600 lbs
Hair colour src
brown
Posture src
standing

Facts & provenance

Each value names where it came from.

Date
August 2010
Stated BFRO report #39851 · BFRO report, labelled fields: Year, Month
Time of day
10 p.m.
Stated BFRO report #39851 · BFRO report, “Time And Conditions” section
Place
Matteson, Cook County, Illinois
Stated BFRO report #39851 · BFRO report, labelled fields: State, County, Nearest Town, Location Details, Nearest Road
Map point
41.53, -87.75 (± 1000 m)
Stated BFRO map layer · BFRO published map layer · read with 85% confidence
BFRO map layer point for report 39851 (5 decimals, no boundary)
Account type
First-hand
Derived BFRO report #39851 · BFRO report, “Observed” section
Witnesses
2
Stated BFRO report #39851 · BFRO report, “Observed” section
Figures reported
1
Derived BFRO report #39851 · BFRO report, “Observed” section · read with 80% confidence
Witness was
driving through a forest preserve
Stated BFRO report #39851 · BFRO report, “Observed” section
Witness's word for it
big person or whatever you want to call it
Stated BFRO report #39851 · BFRO report, “Observed” section
Source classification
Class B
Stated BFRO report #39851 · 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.

Investigated by
Stan Courtney (BFRO)
Follow-up

The witnesses revisited the site in daylight and noted the figure had stood in a ditch about three feet deep.

BFRO report, “Observed” section
Follow-up

An investigator spoke with both witnesses by phone and summarized size, appearance, lighting and distance details.

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 2013-02-19 Retrieved 2026-09-25 Version 1 Hash 73723766679a
    BFRO - Bigfoot Field Researchers Organization
  2. BFRO map layer Reference
    Retrieved 2026-09-24 Version 1 Hash cfb8a3d423b7
    BFRO - Bigfoot Field Researchers Organization