Water Monster reports from the 1900s
64 cases, best-documented first. Page 1 of 1.
We map claims, not creatures. A case is what some source says someone saw or heard, with the link to that source. It is not proof that anything was there, and a retelling counts once, not as a second sighting.

Water Monster · Congo, République démocratique du Congo · 1901
A French traveler reports that natives described a ferocious amphibious creature near Djali that attacked canoes and people, which he later saw descriptions of and heard was shot by Sergeant Sans.

Water Monster · Great Barrington, Massachusetts · 1903
Captain Stavely reports seeing a large sea monster with black and gray blotches, approximately 200 feet long, near Great Harrington during a voyage from San Francisco to London.

Water Monster · Brasil · 1905
Messrs. Meade-Waldo and Nicall report seeing a great fin and enormous head rise from the water while cruising off Brazil.

Water Monster · Malta, Montana · 1909
Chief Officer Nell S. Murray reports seeing a monstrous lizard or sea serpent swimming parallel to the British steamship Mereddio, described as being as big as a whale with alligator-like hide and a…

Water Monster · Willmar, Minnesota · 1900
Dr. A. Apellof published a theory in naturen to debunk the existence of the Big Lake monster by attributing sightings to organic gas, while Jemtlandsposten protested that this explanation did not fit…

Water Monster · Washington County, Maine · 1904
Witnesses report that several men in canoes pursued a creature described as over 30 feet long with the appearance of a monstrous snake, which swam near the surface and emitted a peculiar odor, with…

Water Monster · Providence County, Rhode Island · 1908
Witnesses report a weird sea monster with a fluked tail, long neck, small head, and two horns that dragged a ton-weight piling into the water after being shot at.

Water Monster · Bear Lake, Utah · 1907
Witnesses report seeing a water monster in the lake that attacked their horse after they fired rifles at it.

Water Monster · Cache County, Utah · 1907
Quill Nebeker reports that a monster attacked his pigs and barn but was calmed by music played on a graphophone before floating away in tears.

Water Monster · Bear Lake, Utah · 1909
The narrator notes that while the North Pole has been discovered, the Bear Lake monster remains uncaptured.

Water Monster · East Hampton, Connecticut · 1900
Witnesses report a lake monster appeared at Lake Poootopang in East Hampton, frightening away by women and children throwing tin cans, and was also seen by Dr. W. F. Lahiff and M.L. Falvey.

Water Monster · Mud Lake, Wisconsin · 1907
Editor Hughes reports that Albert Keinhard captured a 'sea monster' in Mud Lake while fishing, which was then skinned and burned.

Water Monster · Kohala, Hawaii · 1900
A Japanese observer reported seeing a commotion in the water off Kohala that he believed was caused by a sea serpent with fins twenty feet long.

Water Monster · Lake Champlain, Vermont · 1900
A lady and her two sons observed a large serpent-like creature in Lake Champlain near Cedar Reach.

Water Monster · Saint Croix River, New Brunswick / Nouveau-Brunswick · 1903
Witnesses report seeing a sea serpent with large fins and green eyes swimming rapidly in the St. Croix river near Bay side.

Water Monster · Monmouth County, New Jersey · 1904
Captain Adeo Scidmore reported seeing two sea-serpents near the Sandy Hook lightship, one identified as a plesiosaurus and another with an alligator body.

Water Monster · Honolulu, Hawaii · 1905
William Herbert Melton Ayres claims to have purchased the head of a 78-foot sea serpent from a Chinese fisherman and displayed its bones in Honolulu.

Water Monster · Suffolk, Virginia · 1901
Witnesses report seeing a strange huge monster in Lake Kirlyy that resembled a log but was alive, with a man-like head and fuzzy yellow hair.

Water Monster · Barnstable County, Massachusetts · 1906
It is said the sea serpent has been seen on many occasions between Cape Cod and Penobscot bay.

Water Monster · Belém, Região Norte · 1905
Witnesses report that an officer observed a living creature traveling faster than the yacht at eight or nine knots an hour during the night.

Water Monster · Charlotte, Vermont · 1900
Witnesses report that the Lake Champlain sea serpent appeared near Charlotte, with its head resembling an animal but its body obscured by disturbed water.

Water Monster · Bear Lake, Utah · 1907
John Nebeker claims his right hand was injured by the Bear Lake monster.

Water Monster · Bay Ridge, New York · 1905
Theophillus Ralley reports encountering a sea monster with four rows of teeth and fiery hoops while swimming in the Narrows at Bay Ridge.

Water Monster · Santa Cruz de Tenerife, Canarias · 1902
Captain Young reported sighting a serpentine monster fish approximately eighty feet long with shining skin and short fins off the coast of Africa.

Water Monster · Lyon County, Nevada · 1907
Witness reports that a large sea serpent is being seen in Walker Lake, with stories growing larger each time they are told.

Water Monster · Angus, Alba / Scotland · 1900
Captain J Ballard reported seeing a large dark animal with rough hair swimming and raising its head to snort.

Water Monster · Belém, Região Norte · 1906
Witnesses report that two English naturalists saw and sketched a huge eel-like neck with a turtle-like head emerging from the water near Para, Brazil.

Water Monster · Ireland, England · 1907
Witnesses on a ship off the Irish coast reported seeing a bright green and gold sea serpent with long whiskers.

Water Monster · Bear Lake, Utah · 1907
Hon. Aquilla Nebeker confirms the appearance of a monster in Bear Lake and describes his own experience with it, noting its size and temperament.

Water Monster · Carson Playground, Nevada · 1905
Witness reports that State Controller Sam Davis and his companions caught a strange creature in the Carson River that resembled both fish and animal, having nine hairy legs.

Water Monster · Northport, Wisconsin · 1904
James Thorson reports being pulled into a river by an unknown monster while fishing at Northport.

Water Monster · 1908
Witness reports a 120-foot phosphorescent sea monster with green horns followed the steamer Admiral Farragut for several nights.

Water Monster · Chicago, Illinois · 1904
Sergeant Sans shot an animal called the water tiger near the upper Ogue, but it escaped.

Water Monster · Logan, Utah · 1908
Witness reports that Dr. and Mrs. I. P. Stewart, along with several other women, have been spending a vacation near the home of the "Bear Lake Monster."

Water Monster · Brasil · 1908
M. J. Nicoll reports observing a sea serpent with a dorsal fin and eel-like neck near his ship off the coast of Brazil.

Water Monster · Willmar, Minnesota · 1900
Witness reports a lake monster was observed swimming with two hunches on its back for about four minutes.

Water Monster · Éire / Ireland · 1907
Officers of the Cunard liner Campania report sighting a sea serpent with a monster cat's head and fangs off the coast of Ireland.

Water Monster · 1906
Witness reports a creature sighted by Lord Crawford's yacht, the Valhalla, which projected from the water with a large fin and a head like a turtle’s.

Water Monster · Maine · 1901
Witnesses report that the captain and crew of the schooner Madagascar saw a large snake-like creature with scales and a spinal ridge in Maine waters.

Water Monster · Pará, Região Norte · 1906
Witnesses report seeing a strange creature with a neck as thick as a man's thigh and a head like that of a turtle from the yacht Valhalla.

Water Monster · Rathdrum, Idaho · 1909
Witness reports Frank Lafavre saw a school of big fish swimming past his dock on the upper lake.

Water Monster · Spokane, Washington · 1909
Miss [name] reports seeing a large head with a human arm waving out of it while swimming at the float.

Water Monster · Benton County, Missouri · 1909
Chief Officer Murray reports that a Greek quartermaster sighted a massive lizard-like sea monster swimming parallel to the British steamship Moreddlo.

Water Monster · North Sea · 1903
The captain and crew of the steamer Glengrant reported a terrifying encounter with a huge dark sea serpent that rose near their vessel.

Water Monster · 1905
Witness reports officers and crew of the British royal yacht Osborne saw a sea serpent with dorsal fins off the coast of Sicily.

Water Monster · Vietnam · 1906
A Frenchman reported seeing a sea serpent with a curled mustache and Imperial in Cochin China.

Water Monster · San Antonio, Texas · 1908
The narrator reports seeing a large object on the surface which the second mate identified as a pink sea serpent.

Water Monster · Spokane, Washington · 1909
Miss [name] reports that a sea serpent has been sighted at the shore, causing many people to gather and claim they saw it.

Water Monster · Salt Lake City, Utah · 1907
Witness reports a large creature with wagon-wheel eyes and kangaroo-like legs attacked a horse at Bear Lake, leaving three-foot-long tracks.

Water Monster · New York · 1905
An officer on the yacht Valhalla reports seeing a beast travelling faster than the ship during the night.

Water Monster · Vietnam · 1904
A sailor on the ship Kenilworth reports seeing a 100-foot long sea serpent with bright yellow spots in the Bay of Along at Tonkin.

Water Monster · Brazil · 1905
Witnesses report seeing a sea serpent with a turtle-like head and eel-like neck off the Brazilian coast.

Water Monster · Havre, Montana · 1904
Captain Hank Henderson reported seeing a marine monster three hundred feet long that rose like a mast and snapped at men on his deck.

Water Monster · New York · 1902
Mr. [name] claims to possess a live sea serpent kept in a wash tub at his flat and refuses offers of $1500 for it.

Water Monster · Vietnam · 1904
Witness reports that Lieut. L'Eost and his crew saw a great mass floating on the water resembling a monster turtle in the Bay of Along.

Water Monster · Gulf of Mexico · 1901
Witness reports that Henry H. Neligan, an official observer on the steamship Irada, saw a serpent in the Gulf of Mexico.

Water Monster · 1905
Witness reports a sea serpent was seen by the master of the American brig Daphne in latitude farther south than the previous sighting.

Water Monster · Brazil · 1906
Two zoologists reported seeing a great fin and an enormous head rise from the water near their yacht.

Water Monster · 1908
Captain Mader reports that a strange marine monster followed the steamer Admiral Farragut for several days, crossing its bow and displaying a smiling face.

Water Monster · Africa · 1905
Witness reports an enormous serpent with a dark brown color and yellowish-white throat was seen approaching a warship off the southwest coast of Africa.

Water Monster · Devils Lake, North Dakota · 1902
Witness reports a petrified sea serpent was found in cement mines near Devils Lake, with speculation that the local monster turned to stone.

Water Monster · Savannah, Georgia · 1904
Witness reports that warriors found a mighty hole in the barrier of solid rock and the water had vanished, implying the monster disappeared.

Water Monster · 1905
Witness reports that the skipper of the steamship Armadale Castle saw a sea serpent struck by the ship's bow while on voyage to Cape Town.

Water Monster · Willmar, Minnesota · 1901
Witnesses report a large animal or fish swimming back and forth in the lake at Backe, Brunflo, creating waves around it.