Eglwyseg Rocks is a valley located near Llangollen vale in Wales. Several Bronze Age burial mounds have been found in the valley and are the setting for Welsh folklore stories about giants. It is unclear when the area was settled and by whom, but many scholars believe Eglwseg Rocks dates back to the Middle Ages.

Quote from: "Llangollen Vale"

"Hard as th’ Eglwyseg rocks her heart remains,"