Undercity, Marketplace, Tarpit
Tarpit Bedders are small living quarters for the bone-weary, hardworking miners in Tarpit. Additionally, the location serves as a passage between the two levels (lower and upper) of the Tarpit, as the lower level is accessible only through the Bedders. Do bear that is mind, as in order to find The Blind Miner it is necessary to reach the lower levels of the Tarpit.
Go through the door in the Bedders and you will find the Black Miner in the Tarpit.