Ernst August pit
Grube Ernst August (also Grube Ernst-August or Ernst-August-Grube ) means:
- a silver ore mine in Wildemann in the Harz Mountains, see Ernst-August mine (Wildemann)
- Ernst August pit (Rottorf am Klei) , an opencast iron ore mine near Rottorf am Klei , a district of Rennau
- Ernst-August-Stollen , a water solution tunnel in the Harz Mountains
