The Guilleries Massif (Catalan Les Guilleries) is a mountain system located at the apex of the Catalan Transversal Range and the Pre-Coastal Range. The highest point of the range is Sant Miquel de Solterra or Sant Miquel de les Formigues (1.204 m), other main peaks are Turó del Faig Verd (1,187 m), Rocallarga (1,187 m), Sant Benet (1,149 m), El Far (1,111 m), Sant Gregori (1 ,094 m), Montdois (930 m), L'Agullola (921 m) and Turó del Castell (851 m)[1]
The Guilleries is one of the few places in the Catalan Mediterranean System where amphibolite facies conditions are found.[2] The Pantà de Susqueda and Pantà de Sau reservoirs, of great importance for Barcelona metropolitan water supply, are located in the Guilleries area.
These mountains were notorious in former times for being a haunt of bandits and highwaymen.[3]
