Cueva del Valle Park is located in Barrio de Helguera, the itinerary starts from the existing car park at the bottom of La Mies. Along the way, we will be able to find a mineral washhouse and the mouth of an old mine. The park is developed in a privileged environment, with riverside trees, among which alders, oaks, poplars and plane trees predominate.
The entire space is surrounded by the numerous springs in which the Silencio River is born. There are various explanatory panels on animals, trees and life forms in the Paleolithic, which are accompanied by the figure of a life-scale mammoth and a display case with a reproduction of some elements of movable art found in the cavity. In this way, the set allows us to know the environment in which the first occupants of the great cavity that presides over this place lived.
In the same way, the archaeological value of Cueva del Valle was discovered by priest Lorenzo Sierra in 1905, who found a very important site of movable art. He initially found pieces from the Upper Magdalenian and Azilian period. In the late period of 1990, new materials from the Bronze Age were found.
Cueva del Valle or La Viejarrona as it is known in the vicinity, is a karst system of about 60 kilometers in its entirety. This area is one of the mouths of this system, which has six in total and the one in question is the lowest of them all. This circumstance makes it a spectacular attraction for caving, being known worldwide for it. Rasines celebrates every year in the month of August one of the concerts of the annual program of the Santander International Festival, which attracts hundreds of people to Cueva del Valle Park.
It should be noted that the Silencio River is born in Cueva del Valle, a tributary of the Ruahermosa and both of the Asón River.