Jefferson Municipal Power Plant in "Centaur in Brass" (Location)

The "municipal power plant" (151) where Flem Snopes is the superintendent generates electricity for the town by burning coal to heat water into steam. The job of shoveling coal into the fires is done by Negro "firemen," who are supervised by white men whose job includes making sure that the pressure in the plant's three boilers does not become dangerously high (153) - a job made much harder by Flem's theft of the machinery's brass fixtures.