 They were held for a few days in Lower Shawneetown before escaping and walking for 23 days to reach Pittsburgh.John P. Hale states that in about November, 1758, 
... a very extreme, if not unprecedented, flood in the rivers swept off a greater part of the town, and it was never rebuilt at that place; but the tribe moved its headquarters ... up the Scioto and built up successively the Old and New Chillicothe, or Che-le-co-the Towns.There remained a Shawnee village at the mouth of the Scioto, which was then built upon the other side, the present site of the city of Portsmouth.