at the wonderfully well preserved stone house at knap of howar on the orkney island of papa westray (occupied from 3500 bc to 3100 bc) the walls stand to a low eaves height, and the stone furniture is intact. evidence from middens shows that the inhabitants kept cattle, sheep and pigs, farmed barley and wheat and gathered shellfish, as well as fishing for species which must be caught from boats using lines. finely made and decorated unstan ware pottery links the inhabitants to chambered cairn tombs nearby and to sites far afield, including balbrindi and eilean domhnuill.