By car:
A 40 Dortmund - Essen, exit Dortmund-Lütgendortmund/B235, follow the signposts
A 42 Dortmund - Oberhausen, exit Castrop-Rauxel, stay on B 235, follow the signposts
A 45 Dortmund - Frankfurt, exit Dortmund-Marten, in direction to Dortmund-Marten, follow the signposts
 

For your Information: The city of Dortmund and the LWL-Industriemuseum Zeche Zollern are located in a restricted enviromental zone. To enter the zone you will need a yellow or green environmental badge for your car.

By public transport:

Underground U 47 to Dortmund-Huckarde bus station, then change to Bus 462 (in direction to Dortmund-Marten) to "Industriemuseum Zollern"

S-train line 1 to Bochum-Langendreer or

S-train line 4 to Dortmund-Lütgendortmund, change to Bus 378 (in direction to Castrop-Rauxel) to „Bövinghauser Straße“, turn to the right and walk to Rhader Weg / Grubenweg

Train RB 43 ("Emschertal-Bahn") Dortmund to Dorsten, exit Bahnhof "Dortmund-Bövinghausen".
Leave the station heading for the railway bridge, turn right after 10 metres into Merklinder Strasse, then diagonally left through the estate: Plutostrasse, Jupiterstrasse, cross Rhader Weg diagonally into Grubenweg