Rock Creek caverns

Rock Creek caverns is a large disconnected metro tunnel/cavern in Fallout 3.

Background
The northern edge of the D.C. metropolitan area is an unlikely place for a cavern. This underground area was made accessible by a gas explosion that created a large crater and opened an entrance into the caverns.

Exterior
The entrance to the Rock Creek caverns is accessed through a sewer grate at the bottom of a crater that has exposed the sewer system, just to the north-northwest of the National Guard depot. When coming from the direction of the National Guard depot, there is a guaranteed encounter with two raiders and two super mutants wielding big guns.

Rock Creek Caverns
This section is the only section in Rock Creek Caverns, but is a large section incorporating numerous tunnels and offshoots as well as brief areas of the metro system. 15 mirelurks are scattered around the section. At point D on the local map image seen above, there is a bed that can be slept in along with a safe. At Point F there is a mercenary and wastelander corpse or 2 wastelander corpses along with an Easy-locked safe (which may contain a Stealth Boy), a power fist and a few ammunition boxes. Point G has a dead skeletal family and a stimpak and RadAway, along with a teddy bear. Point E just has some dead brahmin and dead ants along with some egg clutches and Point C has a car near the ceiling (apparently where the road once passed through) which can explode.

Notable loot

 * A Nuka-Cola Quantum can be found in a wooden crate at B on the local map image. To get to it, walk up the fallen stalactite at A, which rests at an angle against a wall in the first and largest chamber of Rock Creek Caverns. At its tip, jump up to where some mushrooms are located. Hugging the wall, walk on the skinny ledge around to B.

Appearances
Rock Creek Caverns only appears in Fallout 3.

Behind the scenes

 * Rock Creek Caverns gets its name from the Rock Creek Park in Washington DC.