Trails, tours, fascinating stories and features: visit Association sites to access the rich heritage of this area of England Milton Keynes Heritage Association - MKHA - formed in 1994 by a number of local heritage groups and museums, with the aim of encouraging and developing co-operation between organisations having an interest in heritage in Milton Keynes, North Buckinghamshire and South Northamptonshire. It also has a central role in promoting heritage, by working closely with Councils and other agencies. MKHA has around 60 member organisations, with a broad range of interests and a wide geographical coverage from Buckingham in the west, Olney in the east, Towcester in the north and Woburn Sands in the south.