Fort Facian is a fort ruin located south of Sercen Camp. When in Cheydinhal, wander around near the Fighters Guild hall and Riverview to spot an Orsimer in red clothes. Ask him about rumors and he will reply, "Treasure holes... in Cyrodiil?" and this gives the Hero a map marker to Fort Facian and Fort Naso. Both forts are close together and can give good leveled items.