Iron Rivers

The Iron Lines are a group of fairly primitive, nomadic tribals.

History
Also known as the Iron Rivers, the tribe traveled from the West for many years to reach the Great Circle. They followed the path of the "Great Roaring Machine", a pre-War train, because they believe it to be a sign of the Old World's return. Once part of a larger tribe in the West, they have long since split.

The Iron Lines are religious, believing in many tales such as the "Chain Walkers" and "Mad King Scorpion", in a similar vein to Native American folklore. However, the tribe has recently become a target for Caesar's Legion as potential slaves, who prey on these weak nomads and antagonize them occasionally.

Characteristics
The Iron Lines charted the railways of the pre-War world. They collect and often use handcarts to make their way across the wilderness. When they travel, they usually form handcart caravans for mutual safety.

The Iron Lines resist the Daughters of Hecate and have remained largely immune to the plagues that haunt other tribes who go against Hecate’s wishes. However, the Vipers never pass up an opportunity to butcher any Iron Lines they discover. The Iron Lines decorate their bodies with paintings of parallel lines. Although they are nomadic, their main headquarters is Circle Junction, which is pretty literal in its naming - it's a circular collection of railways that intersect and go in a number of different directions, located east and south of Denver.

Interactions with the player character
The Prisoner can help rejoin the Iron Lines with their old tribe to gain bonus XP.

Appearances
The Iron Lines have not appeared nor are they mentioned in any published game. They were to appear only in Van Buren, the canceled Fallout 3 by Black Isle Studios. They were referenced within Lonesome Road, a DLC for Fallout: New Vegas.

Behind the scenes

 * While they were never referred to as "Iron Lines" during the actual development of the game, J.E. Sawyer later named them Iron Lines because of their body art and general association with the railroads.
 * Wasteland, the spiritual ancestor to the Fallout series, included a similar railroad inspired group called the Rail Nomads.