The High Forest is a remnant of the days of old, when all of Faerûn was covered in green and elves, and giants and dragons ruled the world. The Forest is a vast region of old forest growth bounded by the Nether Mountains in the north and the High Moor to the south. To the west is found the Evermoors and to the east the Delimbiyr Vale through which flows the Delimbiyr River. What lies within this deep forest is somewhat of a mystery, and few travel there to explore its depths. The more notable locations in the forest include the majestic Star Mounts—providing the headwaters of the Unicorn Run and the Heartblood River; the Lost Peaks in the northwest that form the headwaters of the Dessarin River; the fabled Grandfather Tree; the Dire Wood in the east; as well as many dungeons ruins, abandoned settlements, and mysterious locales. The southern slopes of the legendary Star Mounts contain the Endless Caverns, which have been said to be home to dragons and passageways that connect to the Underdark. To the south of the caverns is the Stronghold of the Nine, an abandoned dwarven site now apparently claimed by elves.