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The Sarrabus-Gerrei area is located in the eastern part of Sardinia and covers a surface of 575 square kilometers, equivalent to 15% of the total area included in the Geomineral Park of Sardinia.

It is the second-largest area within the Park and is highly representative due to the spread, variety, and significance of mining activities conducted there.

From a mining perspective, the area's deposits of lead, zinc, copper, and especially silver made it the second-largest mining district on the island in the last century.

The region's rich mining heritage is set in a landscape and environmental context of great interest, characterized by varied morphology, with some peaks exceeding 1,000 meters and many others rising above 700 meters.

From a geological perspective, the region is characterized by Paleozoic basement rocks, both metamorphic and granitic, with limited Tertiary covers found in the northern sectors. Quaternary deposits are common in the eastern sectors, at the transition between the inland mountainous terrain and the coast, as well as along the main river courses.

The Sarrabus-Gerrei is also a vast natural area of significant environmental interest, noted for its variety and abundance of plant species. Towering forests and dense stretches of Mediterranean scrub dominate the landscape, while in areas affected by anthropogenic degradation, artificial reforestation projects have created state-owned forests, forming true green lungs of conifer plantations.

The area is also notable for its rich archaeological heritage, encompassing various types of historical and cultural evidence.