Serpent Mounds:

Controversial from the moment of discovery, the 'enigmatic' Rotherwas Ribbon was quickly covered up.

An ancient serpent mound in a modern park.

Its precise location is unknown. And its surviving folklore came from another resident of London's Cheyne Row.

Boyd County serpent mound's neighbourhood shows serpent mounds may be associated with places called 'cat' or 'ket'

Warren County serpent mound near Hamilton, Ohio, was apparently second only to the Great Serpent Mound in Adams County. Its controversies died when it was destroyed in the early 1970s.

Britain's earliest recorded serpent mound is the cute curl at the right of this 1754 plan. Why no older references?

A carefully described serpent mound... which didn't make it into Scotland's Canmore database of ancient sites.

A well-documented serpent mound now kept off limits.

A Scottish serpent mound with finds of flint and bronze knives. And folklore about battling giants.

Ortona's serpent mound helps us question serpent mound narratives.

So little information has big implications.

A map of pre-Victorian Grimsby helps us understand why mystery and mimic plays were suppressed.

LIDAR image of Ohio's Serpent Mound. Native Americans say they didn't build it. Academics say they did.

Ohio's Serpent Mound seems to be the only serpent mound selected for tourism.