FILE 01Read here
Federal Bureau of Investigation
The FBI’s Bigfoot hair examination
Read the FBI’s replies, internal examination request, and laboratory findings concerning hair submitted as possible Bigfoot evidence.
BigfootOpen file
THE RESEARCH SHELF
START WITH THE FBI FILELABORATORYThe Bigfoot FilesFollow the paper trail.
Lab results. Field research. A sheriff’s report.
Open the records and read what they actually say.
19 catalogued records8 readable here5 source categories
1976—1977What did the
hair test find?Read the correspondence →
Government records, published research and archive guides, with origins and findings kept in context. A recorded claim is not a verified identification.
How we choose documents ↓Government
FILE 05Read here
U.S. Army Corps of Engineers
Why Sasquatch appeared in the Washington Environmental Atlas
A page from Shaping Environmental Awareness describes publication of the 1975 Washington Environmental Atlas and its memorable Sasquatch reference.
BigfootOpen file
FILE 06Read at source
U.S. State Department / National Archives
The 1959 Yeti expedition memo
An embassy memo relaying Nepal’s regulations for expeditions seeking the Yeti, preserved by the National Archives.
Yeti · related researchOpen file
FILE 18Read here
U.S. Army Corps of Engineers · St. Paul District
Can the engineers save Bigfoot?
A period agency newsletter discusses Bigfoot, environmental protection and the Washington Environmental Atlas.
BigfootOpen file
Police & sheriff
FILE 02Read here
Sarasota County Sheriff’s Office
Sarasota sheriff’s Skunk Ape incident report
The agency-written report records receipt of an anonymous letter and two photographs describing an encounter with a monkey or ape. Case number 2001-1004986.
Bigfoot / Skunk ApeOpen file
Universities & laboratories
FILE 03Read here
Oxford-affiliated research team & Lausanne Museum of Zoology
Genetic analysis of hair samples attributed to yeti, bigfoot and other anomalous primates
A systematic genetic survey of submitted hairs, including material attributed to North American Bigfoot and Himalayan Yeti. DNA was recovered from 30 samples.
Bigfoot & YetiOpen file
FILE 04Read here
University at Buffalo-led research team
Evolutionary history of enigmatic bears and the identity of the yeti
Mitochondrial DNA research on purported Yeti remains and regional bear specimens from the Tibetan Plateau and Himalayas.
Yeti · related researchOpen file
FILE 07Read at source
The Relict Hominoid Inquiry · hosted by Idaho State University
DNA as evidence for the existence of relict hominoids
A critical review of purported relict-hominoid DNA studies, with discussion of methods, sample origins and interpretation.
Bigfoot & related hominoidsOpen file
FILE 08Read at source
Oxford & Natural History Museum of Denmark-affiliated researchers
Himalayan ‘yeti’ DNA: polar bear or DNA degradation?
A methodological challenge to the interpretation of two Himalayan samples in the 2014 Sykes study.
Yeti · related researchOpen file
FILE 09Read at source
Authors of the 2014 hair DNA study
Response to Edward and Barnett
The original authors respond to criticism and correct the identity of the polar-bear reference specimen used in their comparison.
Yeti · related researchOpen file
FILE 10Source record
University of Alberta-affiliated researchers
Molecular cryptozoology meets the Sasquatch
A published article concerning molecular identification and Sasquatch, associated with the University of Alberta hair-testing work.
BigfootOpen file
FILE 11Read at source
The Relict Hominoid Inquiry · hosted by Idaho State University
Analysis integrity of the Patterson–Gimlin film image
A researcher-authored examination of image integrity and interpretation in the Patterson–Gimlin film.
BigfootOpen file
FILE 12Read at source
University of Washington & Idaho State-affiliated authors · RHI
Mathematically optimal restoration and stabilization of the Patterson–Gimlin film with computation feature detection
Technical work on stabilizing and restoring the Patterson–Gimlin film for examination.
BigfootOpen file
FILE 13Read at source
The Relict Hominoid Inquiry · hosted by Idaho State University
Multiple-factor geospatial analysis of Sasquatch encounter locations in the Blue Mountains
A geographic analysis of reported encounter locations in the Blue Mountains.
BigfootOpen file
FILE 14Read at source
University of Massachusetts Boston · ScholarWorks
Sasquatch and the Law: Bigfoot preservation laws in Washington State
A conference paper examining the history and implications of Sasquatch protection measures in Washington counties.
BigfootOpen file
FILE 19Read at source
Texas A&M University–Kingsville researchers / SEAFWA
Cryptozoology: a case study using molecular markers to identify cryptic species
DNA from hairs at a damaged Texas outbuilding was used to identify an unknown animal.
Related cryptozoology methods · not a Bigfoot testOpen file
Museums & archives
FILE 15Source record
Smithsonian Institution · National Anthropological Archives
Guide to the Grover Sanders Krantz papers
A guide to Krantz’s papers, including a Sasquatch series, research files, correspondence and recordings.
BigfootOpen file
FILE 16Read here
Library of Congress · American Folklife Center
On the trail of Bigfoot in the Library of Congress
An official guide to Bigfoot-related storytelling, recordings and other material in Library of Congress collections.
BigfootOpen file
Local government
FILE 17Read here
Skamania County, Washington · official code publisher
Skamania County’s Sasquatch ordinance entries
Only the Sasquatch entries from the county’s official ordinance list: 69-01, Sasquatch protection, and 1984-02, Sasquatch refuge.
BigfootOpen file
No records match those filters. Try a broader search or clear the filters.
A library, with the labels left on.
Where it came from
Each entry identifies the author or agency, the original publication or collection, and the copy’s provenance. University affiliation and university endorsement are different things. Museum holdings are not automatically museum findings.
What it found
Positive interpretations, negative tests, corrections and inconclusive results belong together. Hair microscopy, DNA sequencing, witness accounts and administrative records are labeled separately. Yeti and other related research are clearly identified.
What we can host
We keep reusable government-authored pages and openly licensed research on this site. One reader loads directly from its original publisher. The Corps newsletter article is an on-site scan excerpt, and the Skamania County entry shows only the two relevant ordinance index entries. Other entries open the source in a separate tab while reproduction rights or a usable scan are still being checked. Free to read does not always mean free to republish.
Collection checked November 1, 2026. Copies preserve existing redactions. Selected excerpts and reformatted text editions are labeled; privately supplied enclosures are not assumed to be public domain. The archive is separate from community sighting reports.
Know of another official record? →