Aar (Lahn)
| Aar | |
|---|---|
| Waterfall in Adolfseck | |
| Location | |
| Country | Germany | 
| Physical characteristics | |
| Source | |
| • location | Taunus | 
| Mouth | |
|  • location | Lahn | 
|  • coordinates | 50°22′7″N 8°0′20″E / 50.36861°N 8.00556°E | 
| Length | 49.7 km (30.9 mi) | 
| Basin size | 313 km2 (121 sq mi) | 
| Basin features | |
| Progression | Lahn→ Rhine→ North Sea | 
The Aar (German pronunciation: [aːɐ] ⓘ) is a 50-kilometre-long (31 mi) river of Hesse and Rhineland-Palatinate, in western Germany, left tributary of the Lahn. It rises in the Taunus mountains, near Taunusstein. It flows generally north through the towns Taunusstein, Bad Schwalbach, Aarbergen and Hahnstätten. It flows into the Lahn in Diez.