The view up here near the Puerto de Somosierra is naked rocks, snowy pine trees and sometimes a foggy view.
The highway is good, and soon you will have gone down to a warmer place. What you will notice is that the nature differ between the both sides of the mountain, depending on the local climat (sun, heat and wind conditions).
Puerto de Somosierra is at an altitude of +1404 m. This means a bit colder and a danger of fog/clouds, snow or ice on the road.
Give attention to the warning signs that are set up (enlighted signs with text messages).