Canencia Pass, a paved mountain road in Madrid
Puerto de Canencia is a high mountain pass at an elevation of 1.511m (4,957ft) above the sea level, located in the northern area of the autonomous Community of Madrid, in central Spain.
The road to the summit is called M-629. It’s a winding and scenic paved road built between 1941 and 1954. The road does get busier at weekends. Located within the Sierra de Guadarrama (Guadarrama Mountains) the pass is 17.1 km long.
The road has some steep parts, with a maximum slope of 10.0%. There are 2 routes to reach the summit. Starting from Canencia, the ascent is 8.9km long. Over this distance the elevation gain is 367 meters. The average gradient is 4.12%. And starting from Miraflores de la Sierra, the ascent is 7.8km long. Over this distance the elevation gain is 368 meters. The average gradient is 4.71%.