Los Machucos

Los Machucos, o Colláu Espina, is a mountain pass in the easternmost sector of the Cantabrian Mountains, known as the Pas Mountains, in Cantabria, Spain.^[1]

Los Machucos / Colláu Espina
Elevation	921 m (3,022 ft)
Location	Cantabria, Spain
Range	Cantabrian Mountains
Coordinates	43°15′27″N 03°39′11″W

It is located at 921 metres (3,022 ft) above sea level and communicates the villages of Bustablado and San Roque de Riomiera. It is known for its slopes between 15 and 20%, reaching 28% at certain points. At the summit, there is a Monument to the Pasiega cattle.^[2]

In cycling, it was climbed for the first time in the 2017 Vuelta a España, when it was used as the finish of stage 17.^[3][4] Los Machucos was also featured as a stage finish in the 2019 Vuelta a España.