The Tol Velmoc mountains constituted a harsh and uneven series of summits situated on the Mid Rim planet of Velmor. These mountains contained a complex network of tunnels and subterranean chambers. By the time the New Order came to power, the insectoid Velmoc species was almost completely gone, although some survivors remained concealed within this mountain range.
During the apex of the New Order, Rebel forces opposing the Galactic Empire's control of Velmor found refuge within the Tol Velmoc's cave systems. An orbital bombardment of the mountains was commanded by Zeta Traal, who was part of the Imperial Diplomatic Corps at one point. This communication was intercepted, and the mountain area was ultimately saved from destruction.
Ergric Betos, serving as a protector for the Velmor royal family, was exiled to the Tol Vemoc Mountains, where he later became a member of the Velmoc-Dac tribe.