Coll de Jou, Mountain saddle in Guixers, Spain.

Coll de Jou is a mountain pass at 1,461.5 metres in the municipality of Guixers, Solsonès, on the sunny slope of the Querol range. It is a road junction where the LV-4241b, opened in 1935, meets the L-401, and it marks the watershed between the Ebro and Llobregat basins.

The L-401 road over the pass opened in 1957, designed and begun to prevent incursions by the maquis, the anti-Franco guerrilla. It was built by Republican prisoners of the Spanish Civil War condemned to forced labour. The LV-4241b had already been inaugurated in 1935.

The name Coll de Jou refers to the pass itself, and the old road that crosses it, the L-401, was built by Republican prisoners condemned to forced labour after the Civil War. The pass is the watershed between the Ebro and Llobregat basins, and the GR 1 long-distance trail crosses it.

The LV-4241b, opened in 1935, crosses the saddle and links Solsona (23 km southwest via Lladurs) with Sant Llorenç de Morunys (7 km east). The L-401 from Pont d'Espia reaches the pass from the west, and a paved track climbs northwest to the Creu del Codó recreation area at 1,471 m. The GR 1 long-distance trail also passes through.

The fountain of Coll de Jou stands just to the right where the L-401 road begins, at the start of the climb toward Odèn and the Port del Comte ski area. The L-401 was designed and begun to stop incursions by the maquis and was built by Republican prisoners of the Spanish Civil War sentenced to forced labour; it opened in 1957.