Yavin 4

Yavin 4, also known as Yavin, was the jungle-covered fourth moon in orbit around the red gas giant Yavin Prime. Prior to and during the Galactic Civil War, it hosted the headquarters of the Alliance to Restore the Republic, a group of resistance fighters that opposed the dominant Galactic Empire.

The surface of Yavin 4 was divided into several continental masses, two of which were Starloft and Wetyin. Notable natural formations included Massassi Valley, Skygazer Hill, and the Ferra Groves. The verdant world had a comfortable, temperate climate but a challenging ecosystem and dangerous predators.

The moon's landmasses were covered by dense jungles and rain forests whose flora included purple-barked Massassi trees, grenade fungi, bioluminescent orchids, and climbing ferns. Yavin 4 also had swampy areas. The moon, however, was completely lacking in any mineral resources of significance.

Five thousand years before the Battle of Yavin, the ancient warrior race of the Massassi lived on Yavin 4 and constructed the Great Temple. Being enslaved by the Sith, the Massassi species would be extinct by the time the Alliance to Restore the Republic would utilize the temple during the Galactic Civil War as a base of operations against the then-dominant Galactic Empire.