Note: this page covers the Standalone version of DayZ; for information on the Mod, see Mod:Green Mountain.
Green Mountain is a large hill to the northeast of Zelenogorsk. The primary point of interest at Green Mountain is the Radio Tower inside the military base which is by far the tallest building in Chernarus, easily visible quite far away.
Because of the good visibility of the surrounding area offered by the tower, it can be home to bandits and survivors alike. Zombies spawn near the complex, but since Green Mountain is far removed from any other zombie-populated areas, players will more than likely be able to get away with using guns to dispatch them without alerting other zombies.
Besides the military facility, there is not much at or nearby to the mountain.