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| Bregenzer Ach | |
|---|---|
 Mouth of the river on Upper Lake Constance | |
 | |
| Location | |
| Country | Austria |
| State | Vorarlberg |
| Physical characteristics | |
| Source | |
| • location | Mohnenfluh in the Bregenz Forest Mountains near Schröcken |
| • elevation | 2,400 m (7,900 ft) |
| Mouth | |
• location | Lake Constance at Hard |
• coordinates | 47°30′12″N 9°41′37″E / 47.50333°N 9.69361°E |
• elevation | 395 m (1,296 ft) |
| Length | 67.0 km (41.6 mi)[1] |
| Basin size | 832 km2 (321 sq mi)[1] |
| Basin features | |
| Progression | Lake Constance→ Rhine→ North Sea |
| Tributaries | |
| • right | Weißach, Subersach |
The Bregenzer Ach (also: Bregenzer Ache) is the main river of the Bregenz Forest (Bregenzerwald) in the Austrian state of Vorarlberg. It is a tributary to Lake Constance and the River Rhine, respectively.
- ^ a b Complete table of the Bavarian Waterbody Register by the Bavarian State Office for the Environment (xls, 10.3 MB)