Undermined
The following geographic objects are called underground :
- Untergrub (Deggendorf) , district of the town of Deggendorf , Deggendorf district, Bavaria
- Untergrub (Haibach) , part of the community Haibach , district Straubing-Bogen, Bavaria
- Untergrub (Kumhausen) , part of the municipality of Kumhausen , Landshut district, Bavaria
- Untergrub (Weihmichl) , part of the community Weihmichl , Landshut district, Bavaria
- Untergrub (municipality of Eggelsberg) , village of Eggelsberg , Braunau am Inn district, Upper Austria
- Untergrub (municipality of Esternberg) , place in the municipality of Esternberg , district of Schärding, Upper Austria
- Untergrub (municipality of Göllersdorf) , locality and cadastral municipality of Göllersdorf, Hollabrunn district, Lower Austria
- Untergrub (Neukirchen municipality) , a town in the Neukirchen am Walde municipality , Grieskirchen district, Upper Austria
- Untergrub (municipality of Sankt Marienkirchen) , part of the municipality of St. Marienkirchen an der Polsenz , Eferding district, Upper Austria