cupmark
A cupmark, or cup mark, is a shallow, circular hollow carved into rock surfaces. Cupmarks can occur singly or in clusters and are often part of broader rock-art traditions such as cup-and-ring marks. They vary in size but commonly range from about 2 to 4 centimeters in diameter and up to several centimeters in depth; some cups are larger or shallower. The surfaces are usually weathered rock, and the marks are created by percussion or abrasion with stone, antler, or other tools through pecking, grinding, or a combination of methods.
Cupmarks are found across Europe, with particularly strong concentrations on the Atlantic fringe and in the
Most cupmarks are solitary, but many appear in groups, forming patterns, rows, or circular/annular motifs where
Interpretations of their function are not settled. Theories include ritual or ceremonial use, territorial or boundary