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Shape / form From year To year Country Time of day Witnesses Evidence Status Duration Sound Colour Motion Lights Sources include Min photos Min videos Min sources Min score

3D model Narrated

“River Monsters”

Stories9

The Mamlambo "Brain Sucker" panic on the Mzintlava River

January 1997 · Mzintlava River, near Mount Ayliff (eMaxesibeni), Eastern Cape

Cryptid · Creature · 19 sources

18Thinly documented

Larry Gwin and Steve Wilson's Altamaha-ha sighting at Smith Lake

December 1980 · Smith Lake, an oxbow off the Altamaha River upstream of Darien, McIntosh County, Georgia

Cryptid · Creature · 24 sources

15Thinly documented

White River Monster ("Whitey"): The Summer 1971 Sightings, Polaroid and Three-Toed Tracks

June 1971 · White River near Newport and Jacksonport, Jackson County, Arkansas

Cryptid · Creature · 18 sources · 2 photos

37Partially documented

The Ohio River Monster, later called Octo-Man (Cincinnati area, 1959)

January 29, 1959 · Ohio River near Cincinnati: New Richmond and Kellogg Avenue, Ohio; Licking River bridge and Fort Thomas, Kentucky

Cryptid · Creature · 14 sources

17Thinly documented

The Green Clawed Beast of the Ohio River, Dogtown, Indiana

August 14, 1955 · Ohio River off Dogtown (Cypress), west of Evansville, Indiana

Cryptid · Creature · 33 sources

27Thinly documented

Johnnie, the St. Johns River Monster: Buck Dillard's Lake Dexter sighting, 1953

1953 · Lake Dexter, St. Johns River, near Astor, Florida

Cryptid · Creature · 18 sources

15Thinly documented

The Alsworth and Hammersley Floatplane Sighting of the Iliamna Lake Monster, 1942

September 1942 · Near an unnamed island in the middle of Iliamna Lake, Alaska

Cryptid · Creature · 24 sources

20Thinly documented

Bramlett Bateman's White River Monster sightings and the Newport monster hunt

July 1, 1937 · Eddy of the White River about 6 miles downstream from Newport, Jackson County, Arkansas

Cryptid · Creature · 23 sources

25Thinly documented

John Alfred Jordan and the Dingonek of the Maggori River

c. 1907 · Maggori River (now Migori River), Lumbwa country, near Lake Victoria, Migori County

Cryptid · Creature · 17 sources

25Thinly documented

Names2

Michael Newton Person · 5 stories
A cryptozoology author whose books turn up again and again in the sea serpent files.
Eric Guiler Person · 3 stories
A zoologist at the University of Tasmania.

Documents8 · see all

Department of State AIRGRAM - Subject: Flying Saucers Are a Myth FOIA release

National Security Agency· 5 pages

…A saucer out down a tree on the Amazon River shore and disappeared in the turbid stream. It…
Nothing But the Facts on UFOs or Which Novosti Writer Do You Read? (with 2 Articles Attached) FOIA release

Central Intelligence Agency· 1968-04-09· 8 pages

…A saucer out down a tree on the Amazon River shore and disappeared in the turbid stream. It…
FBI UFO file, part 2 Document

The Black Vault· 80 pages

…Reserve Officer with Civilian Air Patrol, Black River Falls, Wisconsin. 1947Mr. TelND Mr.I: ••• ~ :: gt:~11 - "'...... iTW"....lcbO…
FBI file: UFO, UFO Part 02 FOIA release

Federal Bureau of Investigation· 79 pages

…Colonel reported that at 3:30 p.m., July 10, one at Black River Falls, Wisconsin, had found…
Unidentified Flying Objects Reports FOIA release

Defense Intelligence Agency· 140 pages

…These and flying monsters belong to the daily routine of human existence and not the stranger part of…
Nothing But the Facts on UFOs or Which Novosti Writer Do You Read? (Wit H 2 Ar FOIA release

Central Intelligence Agency· 1968-03-02· 11 pages

…A saucer out down a tree on the Amazon River shore and disappeared in the turbid stream. It…

All 8 documents →

Videos2

Cryptids And Monsters: The Riverside Monster Of California

From Charles Wetzel's "Riverside Monster"

Mountain Monsters S2E2: Grafton Monster of Taylor County

From The Grafton Monster: a headless white figure on Riverside Drive (1964)