| Master data Aha | |
|---|---|
| Site number | 13405408 |
| Community | Gunzenhausen |
| District | Weißenburg-Gunzenhausen |
| Operator | |
| Body of water | Altmühl |
| Catchment | 688.00 km2 |
| River chainage | 152.05 km |
| Easting | 628004 (ETRS89 / UTM Zone 32N) |
| Northing | 5440112 |
| Gauge zero point | 409.50 m NN (DHHN12) |