Shards of pottery dating back to the Iberian-Roman times have been found at this farmhouse.

This municipally-owned farmhouse, on the Carretera de la Sentiu, dates back to medieval times. It was extensively rebuilt by the La Sentiu school-workshop and the municipal company Gavanenca d'Obres, as only the outer walls remained. Of particular note are its two semi-circular voussoir-arched doorways with sandstone frames, the same material that is used for the lintels, jambs and gutters. On the main façade is a sundial dating back to 1833, which has also been restored.

Currently, Can Llong is a restaurant specialising in mountain cuisine, within the La Sentiu recreation area.