The Casa del Hornillo has been linked to the exploitation of forest resources and the transit of cattle in the ports of La Morcuera and Canencia. The shelter facilities were until recently the temporary refuge of the crews that worked doing forest work in the forests of the Sierra de la Morcuera. The building is built on a hillside on the side of Mount Mojonavalle and offers fantastic panoramic views of the Canencia valley and part of the Lozoya river basin before surrounding the medieval walls of the town of Buitrago. The forest masses that cover the geographies of the Canencia Valley form a dense and homogeneous blanket of Scots pine forest, a tree mainly used for the extraction of high-quality wood that can reach thirty meters in height. The Scots pine has been one of the most used conifers in the reforestation carried out in the Pyrenees, Central System, Maestrazgo and Iberian System. One of the characteristics that best identifies the specimens of this pine is that the bark comes off in the upper part of the trunk in sheets of orange color. In the gardens of the Casa del Hornillo there are also holly, birch and several specimens of Douglas fir or Oregon pine, characteristic for their dense and dark branches. Douglas-fir inhabits naturally on the Pacific coast of North America, between British Columbia and California, and is considered the most important forest species in the western United States, where it accounts for 60 percent of the total forest stands. forest, competing in size and corpulence with the sequoias, the great giants of the plant kingdom. In the Iberian Peninsula, small repopulations have been carried out in some mountains in the north and northeast. In the Sierra de Guadarrama there are plantations in the port of Canencia and in the surroundings of Miraflores de la Sierra.