A
Clearance Cairn is an irregular and unstructured collection of
fieldstones which have been removed from arable land or pasture to allow for more effective
agriculture and collected into a usually low mound or
cairn. Commonly of
Bronze Age origins, these cairns may be part of a cairnfield (a collection of closely spaced cairns) where some cairns might be funerary. Clearance cairns are a worldwide phenomenon wherever organised agriculture has been practised.