Second-hand Related account BFRO #42602

Unidentified sound near Silverthorne, Colorado

During the night Silverthorne, Summit County, Colorado 1 witness

A companion or family member's experience. This event is described inside another report — Backpackers hear growls, knocking and observe two large, hairy bipeds at Surprise Lake. It is catalogued separately because it is a different occasion, not a duplicate.

Account

During the night the companion continued to hear rocks knocked together around camp while the witness slept.

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

Unidentified sound

Facts & provenance

Each value names where it came from.

Date	During the night Stated BFRO report #42602 · BFRO report, “Also Noticed” section · read with 80% confidence
Place	Silverthorne, Summit County, Colorado Derived BFRO report #42602 · BFRO report, “Also Noticed” section · read with 80% confidence
Map point	39.81, -106.30 (± 1000 m) Derived BFRO report #42602 · derived:same-place-as-main · read with 75% confidence The report places this event at its main event's location (SOURCE_MAP_LAYER)
Witnesses	1 Stated BFRO report #42602 · BFRO report, “Also Noticed” section · read with 80% confidence

Source timeline

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

BFRO report #42602 Primary

Published 2013-11-10 Retrieved 2026-09-24 Version 1 1 image at source Hash a62d5628d150

BFRO - Bigfoot Field Researchers Organization