St. Mathias Erbstollen
St. Mathias Erbstollen was a colliery in Bochum . It was founded in 1773. The mouth hole was on Obernbaakstrasse. It is still preserved today. The Erbstollen ran parallel to Baaker Straße directly through the Rauendahler jump .
On February 24, 1869, St. Mathias Erbstollen, United Dickebaeckerbank & Anna Catharina and Johann Friedrich collieries were combined to form the Baaker Mulde colliery .
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Coordinates: 51 ° 25 ′ 22.4 " N , 7 ° 11 ′ 23.2" E