Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
Most of the Brotherhood of Steel is located in California but if you are asking about finding them in Fallout 3, then their main base is located at the Pentagon, renamed by the Brotherhood, The Citadel. You can be taken to it by following the main quest but if you choose to look around for it along the south coast of the big river between D.C. and the main wasteland you cannot get into without following the main quest.