Unterer Hauenstein Pass
{{Short description|Mountain pass in Switzerland}}
{{Infobox mountain pass
| name = Unterer Hauenstein Pass
| photo = Unterer Hauenstein.jpg
| photo_caption = Unterer Hauenstein Pass
| elevation_m = 691
| elevation_ref =
| traversed =
| location = Switzerland
| range = Jura Mountains
| coordinates = {{coord|47|22|52.88|N|7|52|8.14|E|region:CH_type:pass_source:dewiki|display=inline,title}}
| topo =
}}
Unterer Hauenstein Pass (el. 691 m.) is a mountain pass in the Jura Mountains between the canton of Basel-Country and Solothurn in Switzerland.
It connects Buckten in Basel-Country and Trimbach in Solothurn. The pass road has a maximum grade of 6 percent.
The pass was probably already used by the Romans. In 1993, Roman artifacts were discovered at the pass. It also lies close to the Roman settlement of Augusta Raurica.
{{Authority control}}
Category:Mountain passes of the canton of Solothurn
Category:Mountain passes of Basel-Landschaft
Category:Basel-Landschaft–Solothurn border
{{BaselCountry-geo-stub}}
{{Solothurn-geo-stub}}