Hades Hill cairn, NE of Whitworth, was first excavated in the 19th C. Finds from this excavation are in the museum at Touchstones, Rochdale. A second excavation took place in 1982, but was not fully published and the site was not backfilled.
Despite the involvement of Manchester University, a survey of Rooley Moor omitted to mention Hades Hill, though mentioning sites in Bury.
However a radiocarbon date has been published for Hades Hill in Barrowclough’s Prehistoric Lancashire.
Hades is slightly larger diameter,but similar in plan to Bagden Hillocks cairn,
Prehistoric Lancashire, David Barrowclough – Oxbow 2008.
Man and the Changing Landscape – Bernard Barnes, Joan Taylor, ISBN 0-906367-12-3, 1982
Burial mound gives up its history – Rochdale Observer, May 1st 1982 p.58
Lancashire archaeological bulletin – 10, 1984, 2-3 Page(s)23
Pastscape – see the online entry here.