The Vulcanus Lava Flow was located in the southern region of the Bara Magna desert. It flowed west out of the peak of a low-rising volcano and emptied into the Sea of Liquid Sand. An offshoot ran south to the village of Vulcanus.
A lava flow traveled from the outskirts of Iron Canyon into Vulcanus, providing heat for the cold desert nights. The heat from the lava flow allowed the fire Agori in Vulcanus to melt ore and reshape it, or repair existing weapons or tools.