Mammertshofen Castle

Roggwil is a municipality in the district of Arbon in the canton of Thurgau in Switzerland.

Roggwil-Berg railway station (German: Bahnhof Roggwil-Berg) is a railway station in Roggwil, in the Swiss canton of Thurgau. The station sits just over the border from the Canton of St. Gallen, and its name comes from the Thurgau municipality of Roggwil and the nearby St. Gallen municipality of Berg. It is an intermediate stop on the Bodensee–Toggenburg line and is served by local trains only.

Kleiner Hahnberg Castle is a castle in the municipality of Berg of the Canton of St. Gallen in Switzerland. It is a Swiss heritage site of national significance.

Mörschwil railway station (German: Bahnhof Mörschwil) is a railway station in Mörschwil, in the Swiss canton of St. Gallen. It is an intermediate stop on the Rorschach–St. Gallen line.

Dottenwil Castle is a castle in the municipality of Wittenbach, St. Gallen. It is located on a hill 1.5 km (0.93 mi) north of Wittenbach, next to the hamlet of Dottenwil.

Wittenbach railway station (German: Bahnhof Wittenbach) is a railway station in Wittenbach, in the Swiss canton of St. Gallen. It is an intermediate stop on the Bodensee–Toggenburg line and is served by local trains only.

Arbon railway station (German: Bahnhof Arbon) is a railway station in Arbon, in the Swiss canton of Thurgau. It is located on the Lake line of Swiss Federal Railways. It is one of two stations in the municipality; the other, Arbon Seemoosriet, is the next station north on the line.

Mörschwil is a municipality in the Wahlkreis (constituency) of Rorschach in the canton of St. Gallen in Switzerland.

Steinach is a municipality in the Wahlkreis (constituency) of Rorschach in the canton of St. Gallen in Switzerland.

Arbon Seemoosriet railway station (German: Bahnhof Arbon Seemoosriet) is a railway station in the municipality of Arbon, in the Swiss canton of Thurgau. It is located on the Lake line of Swiss Federal Railways. It is one of two stations in the municipality; the other, Arbon, is the next station south on the line.

The Aach is a river in Arbon in Switzerland, formed by the confluence of two rivers, the Hegibach and the Feilebach, each about 9 kilometres (6 mi) long. It flows through the town of Arbon and after almost two kilometers flows into Lake Constance on the south of Arbon next to Steinach, shortly after it catches the Salbach. The link road Arbon-Landquart crosses the Aach. Built in 1910, the bridge over the river was completely renovated for the first time in April 2006, after more than 90 years.

Häggenschwil-Winden railway station (German: Bahnhof Häggenschwil-Winden) is a railway station in Egnach, in the Swiss canton of Thurgau. The station sits just over the border from the Canton of St. Gallen, and its name comes from the St. Gallen municipality of Häggenschwil and village of Winden in Egnach. It is an intermediate stop on the Bodensee–Toggenburg line and is served by local trains only.