Some early wag exploring the channel that separates Eastport and Campobello Island thought a rock formation visible only at low tide resembled an old monk and dubbed it the Old Friar.

The headland behind it soon became known as Friar’s Head.

As for the channel? It’s Friar’s Roads, curving along the island to its end on the Bay of Fundy.
The Old Friar himself may have lost some features during the Civil War when cannoneers stationed on Treat Island used the monolith for target practice. Canada, apparently, never complained, sparing the U.S. an international incident.
The Passamaquoddy, meanwhile, referred to the pillar as the Stone Maiden. The legend told of a young brave who left on a long journey after instructing his lover to sit and await his return. The distraught young maiden sat on the beach and waited for months. Alas, when he finally returned, he found her turned to stone, forever to wait and watch.