We start our route from the Urbanization of Las Cuestas de Galapagar, initially taking the track and then venturing into trails that will lead us to ascend the Cerro de la Osera. Before reaching the summit, we cross the Ventilla stream and face the last steep ascent.
The Cerro de la Osera, with an altitude of 841 meters above sea level, exhibits an ancient and weathered geology, entirely covered by pine forests. In addition to its geological feature, this hill is known for hosting the ancient mines of La Osera, a hydrothermal copper deposit located on its western slope.
We descend sharply to pick up a winding track that crosses the Vinatea stream, leading us to the ascent on the Camino de las Viñas, passing by an abandoned house. We continue our journey along the Retamar ravine towards the Cerro del Paredón, reaching 841 meters above sea level, and then approach the impressive granite blocks of the Cuesta Blanca, rising to 891 meters above sea level.
We return in a circular route along trails to the Retamar ravine, turning towards the Camino de Villanueva del Pardillo. However, we choose to stay parallel to this road through trails, adding a more picturesque and enjoyable touch to our route.
Finally, we conclude our route by returning to the starting point, the Urbanization of Las Cuestas in Galapagar, thus closing our journey.
Max elevation: 891 m
Total climbing: 463 m
Total time: 02:37:32