Prugiasco brings together the parish church of Sant’Ambrogio and a historic hiking trail leading to the church of San Carlo in Negrentino. This places a parish church built in 1700 and a trail to a much older church building at the heart of the story.

Sant’Ambrogio and San Carlo

Features of Sant’Ambrogio include a carved wooden antependium on the high altar, 17th-century choir portraits, a Madonna chapel decorated with stucco, and a 17th-century baptismal font. The antependium is an altar decoration; together with the portraits, stucco, and baptismal font, it demonstrates the variety of the church’s furnishings. The church treasury also includes a 16th-century wooden monstrance and a Late Gothic processional cross.

San Carlo, formerly known as Sant’Ambrogio, lies in the meadows of Negrentino, the hamlet above Prugiasco. The church dates from approximately the last third of the 11th century and preserves Romanesque and Late Gothic frescoes. Its history is also linked to Sant’Ambrogio: San Carlo probably served as the parish church from the 14th century, before this function was taken over by Sant’Ambrogio in Prugiasco in the 18th century.

Historic Trail No. 2

Historic Trail No. 2 is a 5 km circular route with a walking time of about two hours. The ascent and descent are listed as 339 m and 337 m, respectively. The route is classified as family- and child-friendly and is of historical and cultural significance. The walking time and elevation figures give you a practical outline for the hike; you can plan additional time for breaks or visiting the churches separately.

The trail leads to the parish church of Sant’Ambrogio in Prugiasco. Towards Nara Pass, it follows the old Via dei Someri before reaching San Carlo in Negrentino. Brown signs mark the route throughout; orientation and themed information boards provide additional guidance. As signposting details can change, check the route information on site.

The trail from Prugiasco to San Carlo church is steeper and more challenging. From a distance, it offers views of the apses and bell tower. This ascent therefore differs in character from the circular route described: the distance and walking time are given for the loop, while the trail from Prugiasco is defined above all by its steeper, more challenging gradient.

Plan access and your return journey

San Carlo is accessible year-round. From the Nara parking area, you can reach the church on foot in about 15 minutes; the climb from Prugiasco is longer and steeper. Conditions on trails can change, so it is advisable to check local conditions before your visit.

San Carlo can be reached by public transport. After descending to Prugiasco along the marked trail, you can take the bus back from there. Check connections and timetables before travelling so you can plan your return journey to fit your hike.

Hiking trails in a wider context

San Carlo stands at about 850 m above sea level on the sunny side of the wide Blenio Valley. For a longer tour, the Sentiero del Nara descends from Nara Pass to Negrentino, Prugiasco, and Acquarossa. The Sentiero Alto Valle di Blenio offers a different scale: it crosses mountains and alpine pastures and passes mountain huts, with panoramic views over the entire valley. This makes it possible to distinguish the specific circular route No. 2 from the longer-distance routes without suggesting that they follow the same course.

Discover more destinations: Malvaglia, Marolta, Olivone, Lottigna, Acquacalda, Semione, Blenio, Dongio

Return to the main travel overview: Blenio.