The Long Shadow canyons are a series of canyons on Asteria famous for their sunsets and long shadows that darken the entirety of the canyons' valleys. During the Brood War it was the site of the primary zerg hive on the planet's surface. This was key in the final stages of the Battle of Asteria, where a combined infantry and armored push by the Terran Dominion broke the zerg defenses in the canyon and destroyed the hive.