Swallowhead Springs 5
Image by megadread

tiompan wrote:
Harryshill wrote:
When they made the early maps, I assume the area was surveyed.

Could it be the Map makers gave it the name when it's shape became clear. The locals might not have had a name for it.

A real swallow's head like most birds heads is not particularly distinctive and unlikely to be used as a simile in relation to topography in a place name . A pelican or a heron , maybe .
Sounds reasonable.