No central location for Androfin is cited in any of the Gloranthan materials I have. The best source is 'History of the Heortling Peoples' (Stafford Library) which places the tribal centre for the Hendriki at Ililbervor, which is described as the sacred fortress of the Hendriki. Ililbervor lies north of the Savage Forest and Durengard, on the eastern side of the Choralinthor Bay. This makes sense as its within good striking distance of Zistorwal, and Androfin is a prime move in the siege of the Clanking City.