Together these lines circumnavigate the Kaiserstuhl mountain range on its east, north and west sides.

At Riegel DB station, a further junction is made to the Freiburg im Breisgau to Offenburg section of the mainline Rhine Valley Railway.

The railway's operations centre is the station of Endingen, in which the management, the depot and train sheds are located.

Today Endingen, as the transport headquarters for Breisgau–Kaiserstuhl, runs the entire local passenger and goods services on all non-electrified railway lines in the Freiburg region.

From the mid-1950s, bus traffic became the second major component of passenger transport and had high growth rates.

As a result of the merger, the workshop of the Bad Krozingen–Münstertal railway (Münstertalbahn) in Sulzburg was abandoned and the maintenance of the vehicles moved to Endingen.

In 1995, SWEG and Freiburger Verkehrs AG, each with a 50% share, founded a subsidiary, the Breisgau-S-Bahn (BSB), which took over operation on the Freiburg–Colmar railway in 1997.

Due to problems in Gottenheim the point of separation was changed to Endingen a. K. In addition, there is only an hourly train between Titisee and Seebrugg on Sundays.

[8] As of 13 December 2020, trains once again couple and split in Gottenheim, with half-hourly services from Endingen running alternately to Kirchzarten and Titisee-Neustadt[9] via Freiburg.

The only remaining Riegel refrigerated beer wagon has been preserved as part of the museum steam train.

T1 to T6, from Van der Zypen & Charlier, almost all of which also ran at least at times on the Kaiserstuhl Railway and of which the T24 (T4) was preserved as a museum item.

After the incorporation in MEG in 1953, the old fleet of original equipment from 1894/95 was largely scrapped and replaced with more modern or modernised wagons from other former SEG railways in Rhenish Hesse.