Class B First-hand BFRO #42547

Woman recalls her possible encounter on a farm outside Prairie du Rocher.

8 June 1973 about 7:30 - 8 pm, nearly dark Prairie Du Rocher, Randolph County, Illinois 1 witness

Account

The witness was camped alone with a dog near a sinkhole on a farm bluff to feed horses in the morning. After building a fire and cooking, loud grunts, growls and scream-like screeches came from the sinkhole while many young trees shook violently despite little wind. Horses stared then fled, the dog stayed close shaking, and a brief odd odor was noticed. Frightened, the witness doused the fire and left with the dog, and reports avoiding woods since.

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.

Facts & provenance

Each value names where it came from.

Date
8 June 1973
Stated BFRO report #42547 · BFRO report, labelled fields: Year, Month, Date
Time of day
about 7:30 - 8 pm, nearly dark
Stated BFRO report #42547 · BFRO report, “Time And Conditions” section
Place
Prairie Du Rocher, Randolph County, Illinois
Stated BFRO report #42547 · BFRO report, labelled fields: State, County, Nearest Town, Location Details, Nearest Road
Map point
38.09, -90.06 (± 1000 m)
Stated BFRO map layer · BFRO published map layer · read with 85% confidence
BFRO map layer point for report 42547 with published boundary
Account type
First-hand
Stated BFRO report #42547 · BFRO report, “Observed” section
Witnesses
1
Stated BFRO report #42547 · BFRO report, “Other Witnesses” section
Witness was
feeding horses and camping overnight
Stated BFRO report #42547 · BFRO report, “Observed” section
Source classification
Class B
Stated BFRO report #42547 · 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

An investigator spoke with the witness by phone and summarized the account.

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 2013-11-09 Retrieved 2026-09-25 Version 1 Hash b457b17b7caf
    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

  • “in the papers even the St. Louis Post Dispatch”
    Not in the Anomadex yet
  • “Big Muddy - Murphysboro Monster”
    Not in the Anomadex yet