Class A First-hand BFRO #10397

A bipedal subject seen standing in Hannan Lake

August 1977 Mid-afternoon Monroe, Snohomish County, Washington 4 witnesses

Account

Four people in a boat on a lake saw a tall hair-covered figure standing knee-deep in a cove splashing water on its chest. When noticed, it stood upright, looked at the boaters, then calmly turned and walked out of the water into dense woods. The boaters tried to approach the shore but turned back in murky, weed-choked water.

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

Full-body sighting

Described appearance

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

Height src: 7+ ft. in height
Build src: massive, muscular bulk and proportional build
Hair colour src: auburn-brown
Hair length src: 6" long, shorter on head and chest
Face src: appearance of beard, no hair around eyes or nose
Hands src: huge hands
Gait src: large strides, walked out with no effort
Posture src: bent over while wading, not fully upright
Apparent sex src: male by impression
Other features src: head oval, possibly peaked

Facts & provenance

Each value names where it came from.

Date	August 1977 Stated BFRO report #10397 · BFRO report, labelled fields: Year, Month
Time of day	Mid-afternoon Stated BFRO report #10397 · BFRO report, “Time And Conditions” section
Place	Monroe, Snohomish County, Washington Stated BFRO report #10397 · BFRO report, labelled fields: State, County, Nearest Town, Location Details, Nearest Road
Map point	47.48, -121.53 (± 1000 m) Stated BFRO map layer · BFRO published map layer · read with 85% confidence BFRO map layer point for report 10397 with published boundary
Account type	First-hand Derived BFRO report #10397 · BFRO report, “Observed” section · read with 85% confidence
Witnesses	4 Stated BFRO report #10397 · BFRO report, “Other Witnesses” section
Figures reported	1 Stated BFRO report #10397 · BFRO report, “Observed” section
Witness was	rowing in a boat on the lake Stated BFRO report #10397 · BFRO report, “Observed” section
Witness's word for it	A creature Stated BFRO report #10397 · BFRO report, “Observed” section
Source classification	Class A Stated BFRO report #10397 · 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: Jim Von Lossow (BFRO)

Follow-up

An investigator spoke by phone with two witnesses who recalled the day separately in detail.

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.

BFRO report #10397 Primary

Published 2005-01-27 Retrieved 2026-09-24 Version 1 Hash ef1cb3ca9ce4

BFRO - Bigfoot Field Researchers Organization
BFRO map layer Reference

Retrieved 2026-09-24 Version 1 Hash cfb8a3d423b7

BFRO - Bigfoot Field Researchers Organization