The stones and 'mound' shown in carol27's pics are in fact the landscaping done in 2000 when the Victorian water tank that stood on the site was demolished. Nothing at all remains of the the Revidge Barrow, although I believe the urn discovered there during the building of 'The Tank' in 1897 is kept at Blackburn Museum.
The eds or the person who added the site have the ability to check a "destroyed" button for the site. Your photos and captions show your scepticism and this latest commentary clears things up. I'd say that's pretty good megalithic detective work!
Thankyou Ryaner & Buffscrag 71. I'm still astonished however that Blackburn council had the wherewithal ( after the water tank demolition) to then construct an obvious mound with kerb & facing stones:)