The Park is located in the mountainous area overlooking the upper Friuli-Veneto plain.

Protected area extends from the Province of Pordenone to the Province of Udine and embraces Valcellina, the upper Tagliamento River valley and the territories converging towards Val Tramontina

The Forra del Cellina Ravine Regional Wildlife Reserve  - the spectacular gorge that the Torrente Cellina Stream carves into the layers of limestone between Barcis, Andreis and Montereale Valcellina before reaching the upper Friuli plain borders the Park and is managed by the same Administrative Body.

The municipalities within Park territory are:

Comuni di Andreis (pn), Cimolais (pn), Claut (pn), Erto e Casso (pn), Forni di Sopra (ud), Forni di Sotto (ud), Frisanco (pn), Tramonti di Sopra (pn).