Entrance graves date to the later Neolithic era and Bronze Age (c.2500-1000 BC).

Circular in shape, most entrance graves were built with a mound of heaped rubble and soil, typically up to 82 feet (25m) in diameter.

[1] Brane barrow was first discovered by William Copeland Borlase in 1863 while he was exploring an underground structure, probably Carn Euny, a short distance away.

The farmer who owned the site told Borlase that he did not destroy the barrow because it was provided a good shelter for sheep and pigs.

[3] The monument includes an entrance grave, situated in a low-lying pasture close to the upper Lamorna River.