Infanteriewerk IW Richtbühl A 6086 Mg is a Swiss military bunker located near Wartau in the Canton of St. Gallen. The structure is part of Switzerland's extensive network of fortified infantry positions, historically developed to secure the nation's neutrality and defend its mountainous borders.
The specific designation 'A 6086 Mg' follows Swiss military nomenclature for such fixed fortifications. The bunker is situated in the Alpine region of eastern Switzerland, close to the border with Liechtenstein, an area that has been strategically important for national defense for decades.