Raven Rock



 is the Enclave's main base of operation in 2277. It can be found in the northwestern part of the Capital Wasteland. It is inaccessible until a portion of the main quest and depending on certain choices can become inaccessible afterwards. You arrive here after Finding the Garden of Eden and escape during The American Dream.

There is an immense amount of loot available at Raven Rock including rare Tesla Power Armor, Plasma Rifles, and AER9 Laser Rifles and Gatling Lasers. So before you leave Little Lamplight for Vault 87 make sure you only take the essentials as you'll find much more than you can carry, because after you leave it the door seals for good. Also, be sure to grab the Energy Weapons Bobblehead, located on Level 2 in a room to the northwest.

The outer hatch can be blown off from the outside by small arms fire (but not grenades) in an obvious bug. If you arrive at Raven Rock before the Waters of Life quest, it is abandoned and there is an invisible wall preventing you from exploring the inner compound. When you leave, you will trigger the event where Colonial Autumn's vertibirds flee the compound.

Apperances
 only appears in Fallout 3.  is a name referred to in Oblivion: Elder Scrolls by some people on the Waterfront.

Behind the scenes
Raven Rock Mountain Complex is a real-world government complex that became operational in 1953.

Incidentally, a settlement of the same name also appeared in one of Bethesda's earlier games; the Morrowind expansion pack Bloodmoon.