Iron Rivers

A group of fairly primitive, nomadic tribals, the Iron Lines patrol and chart 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.

Appearances in games
The Iron Lines were likely the tribals from Circle Junction referred to by Chris Avellone in the No Mutants Allowed interview. They were intended to be in Van Buren, the cancelled Fallout 3 by Black Isle, but they were cut from the final version of the game.