The Devil's Chapel is the picturesque epithet applied to a rock in the Scowles of Roman iron ore workings situated on the fringe of the Lydney Park estate about half-a-mile from the village of Bream.
Among the many quaint rock formations that stand out is one recognised as "His Satanic Majesty's Pulpit"; through a crevice to the rear lies the first of his "Seven Chambers" which leads from one to the other among these mossy crags;
most of these hollows are open to the sky but some are a series of subterranean caverns.
The iron ore for which the Romans searched is still visible and many Roman coins have been picked up there.
The above text is from The Wye Valley and Royal Forest of Dean: Official Guide of the Wyedean Tourist Board (twenty-sixth edition) by Arthur Clarke M.A. (publisher: The British Publishing Company Limited, Gloucester)