Back to Events
Cryptid

Gloucester Sea Serpent

For two weeks in August 1817, hundreds of witnesses saw a giant serpent in Gloucester Harbor. Ship captains, farmers, and fishermen all described the same creature. Scientific investigations followed. It vanished.

1817
Cape Ann, Massachusetts, USA
200+ witnesses

The Gloucester Sea Serpent sparked America’s first cryptid investigation.

The Sightings

August 1817:

  • Two weeks of sightings
  • Hundreds of witnesses
  • Gloucester Harbor
  • Multiple independent
  • All agreed on description

The Description

Consistent reports:

  • 40-60 feet long
  • Serpentine body
  • Humped back
  • Head like horse or dog
  • Dark color

The Witnesses

Credible observers:

  • Ship captains
  • Town selectmen
  • Magistrates
  • Farmers
  • Fishermen

Scientific Investigation

Linnaean Society:

  • Investigated formally
  • Collected depositions
  • Classified creature
  • Named new species
  • Later retracted

The Searches

Attempts to capture:

  • Armed boats
  • Shots fired
  • Never caught
  • Appeared indifferent
  • Eventually left

Legacy

Impact:

  • Sparked interest
  • Sea serpent fever
  • Continued sightings
  • New England coast
  • Century of reports

Sources