The Chemin de fer Châtel-St-Denis-Bulle-Montbovon (CBM) planned a metre-gauge railway between the towns in its title. The line was constructed and opened in four stages: from Châtel-St-Denis to Vuadens, then to Bulle, then to La Tour-de-Trême and to Montbovon in 1904. At Châtel-St-Denis it formed an end-on junction with the Chemin de fer Châtel-St-Denis-Palézieux

Chemin de fer Châtel-St-Denis-Palézieux

The Chemin de fer Châtel-St-Denis–Palézieux was opened in 1901, a metre gauge railway running between the places in its title — Châtel-St-Denis and Palézieux-Gare...

. Before the first part opened the company was renamed Chemins de fer électriques de la Gruyère

Chemins de fer électriques de la Gruyère

The Chemins de fer électriques de la Gruyère was the name finally adopted by the Chemin de fer Châtel-St-Denis-Bulle-Montbovon before operation started. . In 1907 it was enlarged by the amalgamation of the Chemin de fer Châtel-St-Denis-Palézieux...

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