Staffelegg Pass

Densbüren is a municipality in the Aarau District of the canton of Aargau in Switzerland.

Küttigen is a municipality in the district of Aarau of the canton of Aargau in Switzerland.

Biberstein is a municipality in the district of Aarau of the canton of Aargau in Switzerland.

The river Suhre is a 34 kilometer long tributary of the river Aare in the Swiss cantons of Lucerne and Aargau. The river rises in Sempachersee (or Lake Sempach) at an elevation of 504 meters above sea level, and joins the Aare east of the town Aarau at an elevation of 362 meters. The most important side valley is the Ruedertal, which joins the Suhretal (or Suhre Valley) at Schöftland. In the medieval age, the river had several names: Suron (1036), Suranum flumen (1210), Sure (1241). Today, the name is written without "h" in the canton of Lucerne, and with "h" in the canton of Aargau. The most important tributaries are the Ruederchen joining at Schöftland, the Ürke joining at Unterentfelden and the Wyna joining at Suhr.

Benkerjoch Pass (el. 674 m) is a mountain pass in the canton of Aargau in Switzerland. It connects Küttigen and Oberhof. Until 1801, the pass was the boundary between Austria and Switzerland. The current pass road was built in 1977. A postal bus route runs over the pass to Aarau.

Biberstein Castle (German: Schloss Biberstein) is a castle in the municipality of Biberstein in the Swiss canton of Aargau.

Aarau (Swiss Standard German: [ˈaːraʊ], Alemannic German pronunciation: [ˈɑːræu̯]) is a town, a municipality, and the capital of the northern Swiss canton of Aargau. The town is also the capital of the district of Aarau. It is German-speaking and predominantly Protestant. Aarau is situated on the Swiss plateau, in the valley of the Aare, on the river's right bank, and at the southern foot of the Jura Mountains, and is west of Zürich, 58 kilometres (36 mi) south of Basel and 65 kilometres (40 mi) northeast of Bern. The municipality borders directly on the canton of Solothurn to the west. It is the largest town in Aargau. At the beginning of 2010 Rohr became a district of Aarau.The official language of Aarau is (the Swiss variety of Standard) German, but the main spoken language is the local variant of the Alemannic Swiss German dialect.

The Wasserflue is a mountain of the Jura, located north of Erlinsbach in the canton of Aargau. It lies on the range east of the Salhöhe Pass. An antenna is located on the summit

Thalheim is a municipality in the district of Brugg in the canton of Aargau in Switzerland.

Herznach-Ueken is a municipality in the district of Laufenburg in the canton of Aargau in Switzerland. It was established on 1 January 2023 with the merger of the municipalities of Herznach and Ueken.

Aarau Torfeld railway station (German: Bahnhof Aarau Torfeld) is a railway station in the municipality of Aarau, in the Swiss canton of Aargau. It is an intermediate stop on the 1,000 mm (3 ft 3+3⁄8 in) gauge Schöftland–Aarau–Menziken line of Aargau Verkehr. The station opened on 10 December 2017.

Until the first of January 2010 Rohr was a municipality in the district of Aarau in the canton of Aargau in Switzerland. At the beginning of 2010 Rohr became a suburb of Aarau.