Dr. Michael Holtkamp

Micha. Economist, owner of Graukaue, working mine owner.

Graukaue | Michael Holtkamp (Cover)

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Underground with Michael Holtkamp

Under the roof of the Gray Coe there are countless microphones, with each microphone being suspended from the ceiling just like a clothes hook. At the beginning of a shift, each miner lowers his microphone, like the announcer in a boxing ring did in the past. When the bell rings three times, the crew goes down into the mine. Glückauf!

The log
This is where I document the advances at Graukaue 2.

	E-mail
	micha@graukaue.ruhr

	E-mail
	micha@graukaue.ruhr

	Website
	en.holtkamp.ruhr

	Website
	en.holtkamp.ruhr