Visited July 2007 with Oxygen Thief, BenWRX and Markr
This is the Longley Lane Sector Operations Centre Bunker, during the war this complex was made up of 3 bunkers.
An operations room, communications room and this one which was the filter.
This room would recieve all the information and filter out any duplicate or unneccesasary information.
After the war it was used as the Preston Armed Forces HeadQuarters, then as a military firing range.
The bunker is now up for sale with planning permission for conversion into a residential property.