| Master data Obernach | |
|---|---|
| Site number | 16616002 |
| Community | Uffing a.Staffelsee |
| District | Garmisch-Partenkirchen |
| Operator | |
| Body of water | Ach |
| Catchment | 41.40 km2 |
| River chainage | 27.00 km |
| Easting | 659223 (ETRS89 / UTM Zone 32N) |
| Northing | 5284336 |
| Gauge zero point | 652.42 m NHN (DHHN2016) |