These subterranean transit hubs, engineered by the Dark Iron dwarves, offer near-instantaneous travel between fixed points across Azeroth. For example, a network connects Shadowforge City in Blackrock Mountain with various locations throughout the Eastern Kingdoms and beyond.
Access to this network provides significant strategic advantages. It allows rapid deployment of forces, circumvents traditional travel obstacles, and offers tactical retreat options. Historically, control over these transit points has been a source of conflict, highlighting their value in both war and peacetime. Their unique design and functionality represent a notable feat of dwarven engineering, blending technology with the raw power of molten earth.