From Thaleischweiler-Fröschen to Zweibrücken, the line crosses the predominantly agriculturally dominated Westricher plateau. It runs through many curves through the Schwarzbach valley, which is located between rolling hills; the valley floor is mostly used as grazing land and its slopes are reserved for forests. Shortly before the confluence of the Schwarzbach with the Blies, it passed through Zweibrücken Central Station. It then crosses the state border with Saarland at Einöd and now runs through the Saar-Palatinate district.
