It is the kind of monument that appears on maps and in monument registers without much accompanying explanation, a shape in the ground that has outlasted whatever community built it and whatever purpose it once served.

Earthworks is a broad term covering a wide range of raised or sunken features constructed from soil and earth, including enclosures, field boundaries, burial mounds, and defensive banks. Without more specific detail attached to this particular site, it is difficult to say which category the Tullaher earthwork belongs to, though Clare's landscape holds examples of many types, from early medieval ringforts to prehistoric burial monuments. The townland name itself, Tullaher, derives from the Irish and relates to a hillock or elevated ground, which may or may not bear any relation to the feature recorded there. For now, the monument exists in a kind of official limbo, recorded and protected but not yet fully described in any publicly accessible form.