Grancha Lakand is the largest and oldest venom mine on Quesh. Built through a fissure created by the Quake, the mine is named for its first explorer, who was trapped by a rockfall during his initial survey. By the time he was rescued, Grancha Lakand's adrenal countermeasures had worn off and he had been breathing Quesh venom fumes for some time.
Lakand excitedly told his rescuers that he had had an epiphany while trapped. The biggest supply of Quesh venom on the planet lay beneath the fissure somewhere, and Lakand knew exactly where to find it. He was dismissed as a venom-intoxicated madman, but when Lakand recovered, he returned to the fissure and, after weeks of surveying, located a huge reservoir of Quesh venom. While not necessarily the largest on the planet, the reservoir has supplied the Grancha Lakand mine for several years without the venom running dry.