thumb|240px|Alamannian Unteraargau in the 10th century The Unteraargau is the lower watershed of the Aar River in the Swiss canton of Aargau.
thumb|240px|Alamannian Unteraargau in the 10th century The Unteraargau is the lower watershed of the Aar River in the Swiss canton of Aargau.
==Geography== It corresponds approximately to the canton's southwestern districts of Aarau, Brugg, Kulm, Lenzburg and Zofingen. The Unteraargau includes that portion of the Aar valley between Aarau and the Klingnauer Stausee, as well as the Aar tributary valleys of the Aabach, Suhre, Wigger and Wyna rivers. It also includes some parts of the Jura Mountains.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).