Gravel Route, beginning and ending at the "Polo C - Serra D'Ossa do Centro de Cyclin' Serra D'Ossa, located in the village of Rio de Moinhos. Circular route connecting "Rio de Moinhos" and "Estremoz". Leave the center, going towards the mountain and following the marked routes. After the river stream, turn left to the mountain where you will progress on more technical paths, until the "Herdade do Burrazeiro" which borders the municipality of "Estremoz". Then go by tar roads towards "Gloria", following secondary roads until reaching the N381, which you will cross, coming from the West, to go to "Estremoz". In "Estremoz "the route continues in an urban environment and at the exit, returns in the direction of "Borba" by property access roads. Here the landscape is dominated by olive groves and vineyards. Arriving at the "Nave", follow the blue route back to the center again.