The DCTA tunnel 014-B Potomac is an unmarked location part of the Metro system under the Capital Wasteland. It is inhabited by several mirelurks.
Layout
This metro system consists of a higher northeastern area, with metro tracks and several stranded metros and a lower southwestern area with small passage ways, which have run underwater.
Notable loot
In the southernmost chamber (lying on instrument panel) is a D.C. Journal of Internal Medicine, guarded by a player level dependent mirelurk.
Appearances
DCTA tunnel 014-B Potomac appears only in Fallout 3.