The Divide

"The Divide? There's nothing there."

- Christine

"Nothing there? Like the Big Empty? The Sierra Madre? No, the Old World sleeps there, sure as the flag I carry. The Courier knows the way. And at the Divide, they and I - there, we'll have an ending to things."

- Ulysses

The Divide is a storm-wracked location in the vicinity of Hopeville in 2281.

Background
The Divide was the site of a meteorological event of epic proportions in 2277 - possibly a result of experimentation at the Big MT. The event was said to have split the earth, destroying entire companies of NCR soldiers and cutting off supply lines along Death Valley Road and the Carson Pass Highway, granting Caesar's Legion time to recover after their loss in the First Battle of Hoover Dam.

There are rumors of survivors from the Divide, but these are just legends, like the Sierra Madre, the Big Empty, and the Burned Man. In the future, the Divide is known to be the site of a battle between the Courier and Ulysses. The battle is described as taking place beneath the "Old World flag", with each participant carrying a "message" for the other. The battle seems to become legendary, and word of it spreads far and wide.

Appearances
The Divide is mentioned in Fallout: New Vegas, Dead Money, Honest Hearts, and Old World Blues, and is set to appear in the upcoming add-on Lonesome Road.

Behind the scenes

 * In Fallout Tactics, the airship expedition of the Brotherhood of Steel is damaged crossing a "great divide", causing them to crash near Chicago and eventually create the Midwestern Brotherhood of Steel. It is possible, though unconfirmed, that these two locations are the same.