The two standard gauge operations joined in a further amalgamation on 1 January 1942, when together they formed the Chemins de fer Fribourgeois, Gruyère-Fribourg-Morat (GFM).

The closure of a connecting line took place in 1969, when the section of the Chemins de fer Veveysans from Chatel-St-Denis to Vevey on Lake Geneva was closed.

TPF operations are centered on Bulle which has a depot, workshops and offers a connection to the standard gauge line to Romont as well as express bus services to the capital.

[1][2] Metre Gauge Locomotives and Rolling Stock 1Gruyère is the name of the Region while Gruyères stands for the small town, situated between Bulle and Montbovon Standard Gauge Locomotives and Rolling Stock Abbreviations (see also above listing) New Deliveries Five existing motor coaches 171-173, 181-182 plus one identical vehicle RBDe 567 316 on long-term lease from TRN SA were recently modernized, incorporating new seating, air condition, information displays and video recording.

Three new intermediate coaches, all second class, have been delivered from Stadler and incorporate a low level centre section suitable for pram / buggy and disabled access.

From 12 December 2006, the TPF together with SBB-CFF-FFS, BLS, CarPostal Suisse, MOB, STB and VMCV introduced a canton-wide zone fare known as "frimobil", ordered and subsidized by the canton.

TPF is paid by SBB Cargo for conveying the standard gauge wagons on transporter trucks to/from Bulle and Montbovon by accordingly fitted motor coaches 121-124.