Blisworth Limestone Formation relationship to the Jurassic ridge, to the west of Peterborough. (BGS sheet 157) Around Towcester it reaches a thickness of 9m. (Hains & Horton p. 85) Blisworth limestone is used as a building material, in particular as blocks of stone. Lilford Hall in Northamptonshire is made from Blisworth limestone. Blisworth Limestone Formation The Blisworth Limestone Formation is a geological formation primarily consisting of limestone deposited during the Bathonian stage of the Middle Jurassic, found in the Jurassic ridge which extends north and south through England. It was laid down in the shallows of the Jurassic sea and is part of
Blisworth opened on 21 May 1991. The by-pass runs to the west of the two villages, now following a newly created route from Tiffield. The road joins the M1 London to Yorkshire motorway at a new junction created at that time, 15A, at West Hunsbury, Northampton. From Northampton to Blisworth the by-pass closely follows the trackbed of the Blisworth to Northampton railway, long since closed. The new road makes a slight detour near the Northampton arm of the canal at the 'staircase' of locks near Rothersthorpe. The road's construction followed many years of long campaigns in the two villages. The London