FELDKIRCH, a small town in the province of Vorarlberg, Austria. Situated on the river Ill, a few miles above its confluence with the Rhine, it is a frontier and customs station of great im portance as it commands the route to the east over the Arlberg pass (5,912 ft.), and has been the scene of many conflicts for the pass. The town is dominated by the old castle of Schattenburg and has a number of old buildings, notably the 15th century parish church, in striking contrast to its modern textile factories where the spinning, weaving and dyeing of cotton is carried on. There is a flourishing transit trade both along the east-west route and northwards to Lake Constance. Pop. (1923) 4,900.