Caves around Costa Valle Imagna are a prominent feature of the Valle Imagna region, known for its abundant karst phenomena. The area contains around 250 known caves, with approximately 110 cataloged. The geological makeup, primarily consisting of Dolomia Principale, contributes to the formation of these underground structures. This region offers a diverse range of natural cavities and formations for exploration.
Last updated: June 30, 2026
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Highlight • Waterfall
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Recommended reading: https://www.ecodibergamo.it/stories/eppen/outdoor/lanello-del-resegone-un-trekking-con-vista-tra-bergamo-e-lecco-o_3409562_11/
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Characteristic passage of the Caminetto or Buco della Carlotta Equipped Path. Be careful of the wet rock in the hole. Full report: https://www.ferrate365.it/vie-ferrate/sentiero-attrezzato-caminetto-buco-carlotta-resegone/
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The Cornabusa Sanctuary, located in the heart of the Imagna Valley, is one of the most evocative sanctuaries in Lombardy. Built inside a natural cave, the sanctuary is dedicated to Our Lady of Sorrows, venerated in this place since the 16th century. The church has been expanded over the years, while maintaining the charm of the original place of worship carved into the rock. The sanctuary is a destination for pilgrimages and is appreciated for its spiritual atmosphere and spectacular panoramic view of the surrounding valley.
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Very scenic waterfall, located at the source of the Enna river. Going up (with caution, the area is very humid and full of moss) to the top of the waterfall, you can admire the cave from which the Enna river flows.
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Mine from which galena (Lead Sulfide) was extracted. It is located 20 minutes from the Alpinisti Monzesi refuge, at the foot of Mount Resegone, where you can observe some entrances to the mine, located on three levels (one collapsed). On the way there are some structures in ruins. Located at 1225 meters above sea level, the mine is also known as "della Rolla".
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The best time to admire these falls is spring, when it is normally full of water, mosses of various shades and flowers. Unfortunately not this year 😔
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Description The Giongo stream (or Gionco) is a watercourse in the province of Bergamo. It originates south of Canto Alto (Forcella di Camblì), north of the capital and flows into the Brembo at Botta di Sedrina after 4 km from the left. It runs through the valley of the same name, crossing the municipalities of Sorisole, Villa d'Almè and Sedrina. For half of its course it forms the northern border of the Parco dei Colli di Bergamo. The Giongo valley is not crossed by roadways or urbanized, and is therefore considered one of the places of greatest naturalistic interest in the lower Orobie near Bergamo. Source: Wikipedia
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Costa Valle Imagna is rich in diverse underground formations. You can find natural karst cavities, caves with active internal springs like Ol Valù, and historical sites such as the Passata Mines, which were used for galena extraction. The region's geology, primarily Dolomia Principale, has sculpted a variety of these structures.
Yes, the Sanctuary of Cornabusa is a notable site. It's a religious building located inside a natural cave, dedicated to Our Lady of Sorrows, and offers impressive panoramic views of the Imagna valley. The Passata Mines also hold historical significance as a former galena extraction site.
Starting from Nala, a marked trail leads to imposing karst cavities that are quite deep and accessible for exploration. Another significant natural feature is Grotta Zoghera, a considerable size cavern reachable via an indicated path. You can also find Ol Valù, a cavity with a spring inside that is rich in water year-round.
For those seeking a more challenging experience, the Val Giongo Cave is a significant karst resurgence with a sub-horizontal structure and numerous branches extending over half a kilometer. It features two small lakes in its initial section, and a wetsuit is recommended for exploration. Carlotta's Hole, part of an equipped path, also presents a challenging passage with potentially wet rock.
The spring season is often ideal, especially for natural features like the Waterfall at the Source of the Enna, when water levels are high, and the surrounding mosses and flowers are vibrant. Generally, temperate weather makes for more comfortable exploration of both above-ground trails and cave entrances.
Yes, the region offers various hiking opportunities. For instance, a marked trail from Nala leads to karst cavities, and an indicated path provides access to Grotta Zoghera. The Pro Loco of Costa Imagna also outlines specific routes to visit local cavities and natural springs.
Beyond cave exploration, Costa Valle Imagna is excellent for cycling. You can find numerous routes for touring bicycles, gravel biking, and road cycling, offering diverse terrain and scenic views of the Imagna Valley.
Yes, the Waterfall at the Source of the Enna is a very scenic spot where the Enna river emerges directly from a cave. You can ascend to admire the cave from which the river flows. Additionally, Ol Valù is notable for having a spring inside that maintains a rich water flow throughout the year.
The region's caves are primarily formed within 'Dolomia Principale,' a light-colored, compact, and resistant rock. The continuous action of water on this permeable rock has sculpted the extensive karst phenomena, including deep cavities, underground springs, and intricate subterranean structures.
Visitors appreciate the unique blend of natural beauty and historical significance. Sites like the Sanctuary of Cornabusa offer both spiritual reflection and spectacular panoramic views. The scenic beauty of the Waterfall at the Source of the Enna is also highly regarded, especially in spring.
Yes, the Pro Loco of Costa Imagna has outlined specific routes designed to help visitors explore several of the local cavities and numerous natural springs, making them accessible for discovery.


Extend your search for the best caves by checking out these guides of the top ones around Costa Valle Imagna: