The territory of Armungia is shaped by the course of the Flumendosa River, which since ancient times has separated the inhabited area from the extensive Murdega woodlands. These forests have historically played an important role in livestock farming, big-game hunting, and charcoal production. Along the trails that wind through the forest, visitors can still encounter the remains of numerous charcoal-burning platforms, significant traces of the work of sawyers and charcoal makers who were once engaged in the production of wood charcoal. This area is also home to the ruins of the Sa Lilla Mine, which operated for several decades between the late nineteenth and early twentieth centuries, extracting galena and sphalerite.
Beyond the Flumendosa, in the highest part of the municipal territory, lies the plateau of S’Ilixi Durci and Sa Perda Lada. This vast sandstone tableland originated from a shallow Eocene sea and has been shaped by erosion over thousands of years, creating caves, rock formations, and natural monuments of remarkable beauty.
The area also preserves some of the oldest archaeological evidence in the region. At S’Ilixi Durci, on an open windswept plain, there is a site of circular tombs dating back to the Copper Age (3rd millennium BC), marked by standing stones that likely indicated the sacred nature of the area. Among the fourteen Nuragic structures recorded by Abbot Vittorio Angius in 1833, the Nuraghe Armungia is of particular interest, as is Nuraghe Turrigas, a corridor nuraghe built in a commanding position just east of the village.
Armungia is crossed by the Sentiero Italia CAI, making it an ideal destination for hiking and trekking enthusiasts. Following the route of the Sentiero Italia, visitors can set out from the Flumendosa Valley and reach Sa Mola and the Sa Perda Lada plateau, or depart from the village and follow the historic trail once used by Armungia’s miners to reach the mining settlement of Su Suergiu in Villasalto.