 Only limited evidence of Roman field systems has been found in the county; possible examples include Longley Farm, Kelsall, Pale Heights, Eddisbury and Somerford Hall, near Congleton.Spelt was grown at the Roman settlement of Wilderspool and a farmstead has been excavated at Birch Heath, Tarporley.Querns have been discovered at the settlement at Saltney, near the legionary fortress of Deva (Chester); the site has been suggested to have grown cereals for the garrison, although the heavy clay soil makes this less likely.