Most holy wells in Ireland carry some visible mark of human attention, a coping of cut stone, a pattern tree hung with offerings, a statue tucked into a recess. Toberdrumsheel has none of that. The water simply rises, runs a short distance, and enters a lake, as it presumably has done for a very long time.

The "tober" element of the name comes from the Irish tobar, meaning a well or spring, and wells with that prefix are scattered across the Irish landscape, often associated with early Christian saints or with pre-Christian veneration of water sources. What makes Toberdrumsheel quietly unusual is precisely its lack of embellishment. The setting, a natural spring at the base of a precipice thick with trees, suggests a place that may never have attracted the kind of formal devotional infrastructure that grew up around more prominent holy wells, or alternatively one where any such features have long since disappeared without trace. The documentary record, drawn from a local archaeological survey of the Ballinrobe district published in 1994, offers only the spare facts: a natural spring, no masonry, a wooded cliff, a lake.