The Fricktal ("Frick Valley") is a region on Northwestern Switzerland, comprising the Laufenburg and Rheinfelden districts of the Swiss canton of Aargau.
The region was known as Frickgau in the medieval period, ultimately from a Late Latin [regio] ferraricia, in reference to the iron mine located here in the Roman era, also transferred to the village of Frick as the main settlement.[3]
In the early 18th century, the citizens of Bern attempted to purchase Fricktal from the Habsburg Emperors without success. Subsequent to the 1797 Treaty of Campo Formio, France occupied Fricktal, and in 1802 it was briefly a canton of the Helvetic Republic, as the Canton of Fricktal. On 9 March 1803, Fricktal was integrated into the Aargau canton of the Swiss Confederation by order of Napoleon.
As of 2014[update] Fricktal, with its mild climate, is an important location for wine and cherry production as well as a base of the chemical and pharmaceutical industries.