Chambered long barrows are a type of megalithic burial monument found in the British Isles in the Neolithic.
Long barrows either contained wooden or stone burial structures beneath the barrow and the surviving megalithic stone in the latter means that they are the ones referred to by archaeologists as chambered. This distinction may have been more to do with the availability of local materials however than any cultural differences.
They are concentrated in southern Britain and parts of northern England.
Chambered long barrow sub-types include: