The 5000 stadia must be discounted: it crosses the Borysthenes upriver near Kiev rather than at the mouth. It does place Pytheas on the Arctic Circle, which in Norway is south of the Lofoten islands. It seems that Eratosthenes altered the base line to pass through the northern extreme of Celtica. Pytheas, as related by Hipparchus, probably cited the place in Celtica where he first made land. If he used the same practice in Norway, Thule is at least somewhere on the entire northwest coast of Norway from Møre og Romsdal to the Lofoten Islands.