Water Monster reports from the 1860s
42 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 · Bear Lake, Utah · 1868
[name], [name], [name], [name], and six women report seeing multiple large animals swimming southward at incredible speed.

Water Monster · Mono Lake, California · 1867
Mr. [name] of Lake county reported seeing two monsters similar to the one described by Mr. [name] in Mono Lake.

Water Monster · Mono Lake, California · 1868
Mr. [name] and accompanying men observed a huge monster in Mono Lake rising from the surface and moving gradually.

Water Monster · New Orleans, Louisiana · 1866
A sea serpent was reportedly seen in the Mississippi River near New Orleans.

Water Monster · Inyo County, California · 1868
Col. Stevens, superintendent of a mining company, saw the monster and described it as throwing water fifty feet high.

Water Monster · Hyde Park, Illinois · 1867
Fisherman Joseph Muhlke reports seeing a monster appear in Lake Michigan near Hyde Park while fishing.

Water Monster · Middlesex County, Massachusetts · 1864
Witness reports a great Lake serpent with a black liken buil dog and a fan tail was seen in the lake near Wester, Mass.

Water Monster · Lake Michigan · 1867
Witness reports that skippers and many other people saw a large sea serpent in Lake Michigan, described as being about a hundred feet long.

Water Monster · Glynn County, Georgia · 1869
Captain Perry reports discovering a large dead sea monster floating off St. Simons and later sighting it again near Cumberland Sound.

Water Monster · Inyo County, California · 1868
Two young men riding horseback observed a huge animal swimming rapidly in Owens Lake, followed by another monster, describing them as 100 feet long and grayish.

Water Monster · Bear Lake, Utah · 1869
Brigham Junior reports that a dozen credible witnesses have jointly and severally beheld a monstrous creature with a horse-like head dashing through Bear Lake.

Water Monster · Lake Michigan · 1867
Dwellers on Lake Michigan claim there is a monster in the lake, possibly a whale, sea serpent, mermaid, or beast, and an expedition is being contemplated.

Water Monster · Boston Harbor, Massachusetts · 1863
Witness reports that a sea serpent was seen last week from the deck of a steamer heading up for Boston harbor.

Water Monster · Lake Michigan · 1867
A German fisherman and others report seeing a huge sea serpent in Lake Michigan near Chicago, Michigan City, Manitowoc, and Milwaukee.

Water Monster · Delaware Bay, New Jersey · 1869
Captain Allen reports seeing a large marine monster with scales and bright eyes accompanied by a smaller specimen while on the ship Scottish Bride.

Water Monster · Lyon County, Nevada · 1868
The author reports that prospectors in the vicinity of Pyramid Lake have claimed to see monsters, though the author notes they themselves have only seen shadows on the water.

Water Monster · Michigan City, Indiana · 1867
A justice near Michigan City claims to have seen the sea serpent blow and swears he saw it with his own eyes.

Water Monster · Bear Lake, Utah · 1868
Witnesses [name] and [name] reported seeing a large aquatic creature in Bear Lake, prompting speculation about its nature.

Water Monster · Rio de Janeiro, Região Sudeste · 1863
An officer reports that a great sea serpent was caught and washed ashore in a sickly state.

Water Monster · Newark Bay, New Jersey · 1869
Witness reports seeing a monster with a dog's head and black scaly back swimming in the bay before it disappeared.

Water Monster · Boston Harbor, Massachusetts · 1863
Witness reports Mr. [name] and other passengers saw a sea serpent from the deck of the steamer General Berry.

Water Monster · Milwaukee, Wisconsin · 1867
A gentleman and two ladies in Milwaukee saw the sea serpent appear suddenly while sailing on the bay.

Water Monster · City of Oswego, New York · 1867
Witnesses report a sea serpent discovered in a lake near Oswego that held its head two feet out of the water and bellowed like a bull.

Water Monster · Toulon, France métropolitaine · 1866
The Toulonnais reports the capture and caging of a thirteen-foot sea serpent in Lake Cepet near Toulon, which was displayed to crowds.

Water Monster · Barnstable County, Massachusetts · 1860
Witnesses report seeing a large, black, finless creature resembling a serpent moving slowly on the water surface off Cape Cod.

Water Monster · Bear Lake, Utah · 1868
Witness reports that Indians claim a serpent-like monster with legs lives in Bear Lake and has carried away swimmers.

Water Monster · Manitowoc, Wisconsin · 1867
Witnesses report that two young ladies in Manitowoc saw a dark bluish creature fifty or sixty feet long off the mouth of the river.

Water Monster · Oakland, California · 1861
Passengers on the Oakland ferry boat reported seeing an aquatic monster scudding through the water with a head like a shark and fins close to the gills, approximately fifteen or twenty feet in length.

Water Monster · Nevada City, California · 1862
Witnesses report a sea serpent appeared near the banks of a salt lake to investigate a slaughtered sheep before being frightened off by men.

Water Monster · Nashville, Tennessee · 1868
Witness reports that a sea serpent seen in the Cumberland River gulped down an unfortunate man standing on the bank near an island.

Water Monster · Lake Michigan · 1867
A reporter retells a humorous story about Phelim and Tim encountering a large sea serpent while sailing in Lake Michigan.

Water Monster · Yazoo City, Mississippi · 1860
Captain Taylor reports seeing an enormous serpent with a shaggy mane and horns attacking his ship's bowsprit before chasing a whale.

Water Monster · Wilmington, Delaware · 1867
Witness reports a large sea serpent was captured by fishermen in the waters of Cape Cepet and displayed in Toulon.

Water Monster · Nashville, Tennessee · 1860
Capt Taylor and the crew of the English vessel "British Banner" report an encounter with a sea serpent that attacked their vessel.

Water Monster · Ottawa, Illinois · 1867
Mr. M. reports seeing a large aquatic creature with a ridged upper surface and tail that struck the water violently before sinking out of sight.

Water Monster · Illinois · 1867
A fisherman reports seeing a large, dark, oval-shaped creature with a long neck, bony plates, and fins in Lake Michigan near Evanston.

Water Monster · 1867
A poem describes a helmsman witnessing a massive black serpent with yellow eyes and multiple heads emerging from the ocean waves before vanishing northward.

Water Monster · Ohio · 1866
Witnesses report a twenty-foot copper-colored serpent was seen in a bayou near Main Street and killed by citizens.

Water Monster · New Jersey · 1869
The author reports that a sea serpent has been seen on the New Jersey shore with a head as large as a flour barrel resembling that of a dog.

Water Monster · Atlantic Ocean · 1869
Captain Allen reports that his crew observed a large marine monster with scales and bright eyes while the ship was calm off Delaware Bay.

Water Monster · Africa · 1866
Witness reports that a large sea serpent pursued the French ship Le Coq for two days off the coast of Africa.

Water Monster · New York · 1868
Witnesses report that multiple individuals and Indians have seen terrible monsters in Bear Lake, with some claiming two tribe members were carried off by them.