La modalidad de Promoción del IV Trail Montán-Sierra Espina, es una carrera por montaña de 11300 metros y 1200 metros de desnivel acumulado (600 metros D+ / 600 metros D-) que transcurre mayoritariamente por sendas y caminos forestales. Es un recorrido de dificultad baja.
The modality of Promotion of the IV Trail Montán-Sierra Espina, is a race by mountain of 11300 meters and 1200 meters of accumulated unevenness (600 meters D + / 600 meters D-) that passes mainly by paths and forest roads. It is a route of low difficulty.