- Class 1a
- Class 1, Corroboration: Reports involving a sighting, and accompanied by another form of support.1a A sasquatch/bigfoot specimen has been collected (alive or dead).
- Class 1b
- Class 1, Corroboration: Reports involving a sighting, and accompanied by another form of support.1b A report investigation results in a sasquatch observation or the documentation of clear tracks or other forms of physical evidence by an investigator.
- Class 1c
- Class 1, Corroboration: Reports involving a sighting, and accompanied by another form of support.1c An investigator determines that a visual encounter with a sasquatch/bigfoot by a very reliable observer is a distinct possibility, tangible corroborating evidence is documented, and all other sources can be reasonably ruled out.
- Class 1d
- Class 1, Corroboration: Reports involving a sighting, and accompanied by another form of support.1d A visual encounter with a sasquatch/bigfoot is a distinct possibility involving two or more reliable observers, and all other sources can be reasonably ruled out.
- Class 2
- Class 2, Competency: Reports involving sightings by professionally trained or highly skilled observers.2 Investigator determines that a visual encounter with a sasquatch/bigfoot is a distinct possibility, the observer is exceptionally trustworthy, professionally trained, and experienced in the outdoors and/or is accustomed to looking for and recording details (e.g., biologist, anthropologist/archaeologist, ranger, trapper/tracker/seasoned hunter, bird watcher, game warden, naturalist, law enforcement), and other explanations can be reasonably excluded.
- Class 3a
- Class 3, Credibility: Sightings or possible wood ape evidence reported by credible witnesses.3a Investigator determines that a visual encounter with a sasquatch/bigfoot is a distinct possibility, the observer is credible, and all other sources can be reasonably ruled out.
- Class 3b
- Class 3, Credibility: Sightings or possible wood ape evidence reported by credible witnesses.3b Unidentifiable vocalizations were reported and there is accompanying tangible evidence to possibly indicate the presence of a sasquatch/bigfoot, the observer is very reliable, and other sources can be reasonably ruled out.
- Class 3c
- Class 3, Credibility: Sightings or possible wood ape evidence reported by credible witnesses.3c No visual encounter occurred, but physical evidence was found to indicate the presence of a sasquatch/bigfoot (tracks, hair, scat, etc.), the observer is very reliable, and other sources can be reasonably ruled out.
Case: 02170006
Class 3aFamily Has Morning Sighting of Large Bipedal Creature
Report Details
Occurrence date: November/1977
Location: Oklahoma County, OK
Nearby/Vicinity: Chelsea
Time / Conditions: 10:00 — Overcast, a little hazy.
# of Witnesses: 3
Location: Oklahoma County, OK
Nearby/Vicinity: Chelsea
Time / Conditions: 10:00 — Overcast, a little hazy.
# of Witnesses: 3
Witness Account:
Three of us, me, wife and son driving West on OK 66, 3 miles North of Chelsea. First observed tall, hairy beast on North side of road, headed South, crossed road into center median where it turned around and, on all fours headed back North rapidly. When he reached the North edge of the hiway the gait changed to bipedal, still hurrying he went through a gate into a hay meadow skirted by timber. He, (it) turned left into the timber, looking back over his left shoulder at us. The gate post was 5 feet tall and came just above his waist. We have all three mostly talked about this only to each other. When he made the turnaround I thought Buffalo! because of the hair color and size. But then it stood up and walked off.
Additional observations:
This is between Grand River and Virdigris and it's travel route was along a small waterway. The divide between the watersheds is within a mile to the Northwest I think. There were reports in little local papers of sounds, harassed dogs, missing dogs, smells etc. for 2 weeks after our sighting along the shore of Oolagah Lake only a few miles West of there.
