Marcha MTB Sierras de Serón

The Marcha MTB Sierras de Serón is a mountain bike marathon held on 17 May 2026 in Serón, in the province of Almería, Andalusia. The 2026 edition counts toward the Provincial XCM Series Almería circuit, organised by the Diputación de Almería in cooperation with the Andalusian Cycling Federation. The course explores the Sierra de los Filabres around Serón, combining marathon and half-marathon distance options on a mix of mountain tracks and singletrack. Registration is handled through the federation's regional portal.