The main objective behind the creation of the Parc Astronòmic Montsec (PAM) was to provide Catalonia with a basic set of facilities for astronomical research, training and promotion. It was also hoped that these facilities would help to stimulate the economy of the surrounding territory.

Given Montsec's unique characteristics as a site for astronomical observation within the context of Catalonia, the PAM should help to attract people interested in both its special qualities and the new possibilities that will develop as a result of its interaction with resources already present in the surrounding area.

The PAM is formed by the Observatori Astronòmic del Montsec (OAdM) and the Centre d´Observació de l´Univers(COU).
 

The OAdM (Montsec Astronomical Observatory) is the scientific branch of the PAM and its basic function is related to research and university training. The centre is located at Sant Esteve de la Sarga, at an altitude of 1570 m. There is a service building and a 6.15 m-diameter dome containing an 80 cm-diameter telescope.