Best mountain passes around Bosisio Parini are characterized by elevated routes and challenging climbs within the Brianza area's pre-Alpine hills. This region, situated near lakes like Pusiano and Como, offers a mountain-like experience through significant elevation gains. The landscape features rolling hills and panoramic viewpoints, providing a rewarding experience for hikers and cyclists. These routes often lead to vistas of the surrounding lakes and the broader pre-Alpine environment.
Last updated: May 14, 2026
Highlight • Monument
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Highlight • Mountain Pass
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Monument dedicated to Angelo Marelli
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Yes, at the foot of the Palanzone
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Passage to go up to Palanzone or to the Riella refuge
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Beautiful ridge hike for those who like to have a bit of emptiness on both sides.
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Technical passage for people with a propensity for exposed passages
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I'm asking for info. On the komoot map there is (going up from the 25th anniversary via ferrata) a fork on the left. Is this fork located before the Passo della Vacca? Is it passable and can it function as an escape route? Thanks
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Passo della Vacca – Corni di Canzo Elevation: approx. 1,230 m Difficulty: EE (Expert Hikers) / T4 Exposure: high on the south side (vertical drop) Passo della Vacca is a characteristic rock notch located along the crest of the Western Horn of the Corni di Canzo, in the Larian Triangle. It is located just below the summit, at approximately 1,230 meters above sea level, and ideally connects the Ravella Valley (Canzo) with Valbrona, offering a suggestive and delicate passage in the crest crossing of the three Corni. Morphologically, it appears as a clear fracture in the rock, approximately 40 cm wide at the base but which widens towards the top, creating an exposed point with a vertical precipice on the south side, above the so-called Camino Gandin (an 80-meter gully). On the north side, however, it descends into a steep grassy gully, more accessible but still sloping. Its particular shape creates a natural “window effect”: at sunset, the sun can filter through the rock and make the hole visible from the valley floor. It is a must-see for those who reach the Corno Occidentale via the ridge from the west or from the Ferrata del Venticinquennale, and is part of routes classified EE (Expert Hikers) due to its exposure. The section is not equipped: there are no chains or cables. The crossing is done by supporting yourself with your hands and feet, lowering yourself on the north side to cross the gap safely. It does not present any real mountaineering difficulties, but requires a sure step, an absence of vertigo and maximum concentration, especially with a bulky backpack or in the presence of wind. The Passo della Vacca can be reached from path no. 1 from Canzo passing through Terz’Alpe, or from Colma di Pianezzo and Rifugio SEV via the ridge. Once passed, in a few minutes you reach the summit cross of the Corno Occidentale (1,373 m). From here you can continue with the complete crossing of the three Corni (Western, Central, Eastern) or descend towards the SEV Refuge. It is not recommended in the presence of snow or ice, when it becomes an alpine passage and may present verglas. In summer, however, it should be avoided in case of storms or crowds. The ideal is to tackle it in spring or autumn with dry rock. Although it is short and technically simple, it is a stretch where caution is essential: in the past, even serious accidents have occurred, often caused by distraction or underestimation of the danger. The Passo della Vacca is a symbol of the wild charm of the Corni di Canzo: a place that offers strong emotions and spectacular views, reserved for those who have experience, attention and respect for the mountains.
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This challenging, exposed pass, not protected by chains, requires extreme caution and a head for heights. The difficulty and exposure of this section approach light mountaineering (EE + A, UIAA grade I–II). This is the most difficult section of the entire Corni di Canzo traverse: https://www.komoot.com/it-it/highlight/7234185 Recommended reading: https://www.lariotrek.it/soiusa/triangolo-lariano/gruppo-dei-corni-di-canzo/corni-di-canzo/corno-Occidente-di-canzo/passo-della-vacca
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Near Bosisio Parini, you'll find elevated routes and challenging climbs within the Brianza area's pre-Alpine hills, rather than traditional Alpine passes. These routes offer significant elevation gains and panoramic views of surrounding lakes like Pusiano and Como, providing a rewarding experience for hikers and cyclists. Notable examples include the Colma di Sormano Summit and Observatory and the trails leading to the Marelli Memorial.
Several elevated routes provide stunning panoramic views. The Colma di Sormano Summit and Observatory offers expansive vistas after a challenging climb. The Marelli Memorial, located on Mount Palanzone, provides spectacular views of Lake Como and the surrounding mountains. Additionally, Bocchetta di Luera (1,209 m) and Forcella dei Corni are excellent vantage points within the Corni di Canzo area.
Yes, the region is known for challenging climbs. Cyclists can test themselves on the legendary Sormano Wall, which leads to the Colma di Sormano Summit and Observatory. For hikers, the Cow Pass is a particularly challenging and exposed section along the crest of the Western Horn of the Corni di Canzo, approaching light mountaineering difficulty. The trail to the Marelli Memorial on Mount Palanzone also features fairly challenging mountain sections.
The Marelli Memorial is a significant historical site. This commemorative monument is dedicated to Pietro Marelli, a partisan who fought during the Italian Resistance in World War II. It's located along a hiking trail leading to the top of Mount Palanzone, offering a chance to reflect on history amidst natural beauty.
The area around Bosisio Parini is excellent for various outdoor activities. You can find numerous mountain hikes, including challenging routes like 'Le Casote di Valmadrera – Monte Moregallo Summit loop'. There are also running trails, such as the 'Lake Pusiano – Bosisio lakeside loop', and road cycling routes, including the 'Lake Pusiano and Lake Segrino Loop' and routes featuring climbs like the Civiglio.
The ideal time to visit is generally in spring or autumn when the weather is mild and the rock is dry, offering pleasant conditions for hiking and cycling. Summer can also be good, but it's advisable to avoid periods of storms or excessive crowds. Winter visits are not recommended for more exposed routes like the Cow Pass, as snow or ice can make them hazardous.
Yes, the Colma di Sormano Summit and Observatory serves as a fundamental refreshment point, perfect for regaining energy after tackling the challenging Sormano Wall. This makes it a great spot to rest and refuel during your adventure.
You can expect to see stunning natural beauty, including panoramic views of the surrounding lakes (Pusiano, Segrino, and parts of Como) and the pre-Alpine landscape. The trails often pass through lush forests, offering a rich biodiversity typical of the pre-Alpine environment. Features like the rock notch of Cow Pass also showcase unique geological formations.
While many of the named 'mountain passes' in this guide are challenging, the broader area around Bosisio Parini, particularly around Lake Pusiano and Monte Cornizzolo, offers a range of routes. For family-friendly options, look for trails categorized as easy or moderate within the Mountain Hikes around Bosisio Parini guide, which may include less strenuous climbs with rewarding views suitable for families.
The 'mountain pass' experience near Bosisio Parini is characterized by challenging climbs and elevated routes within the local pre-Alpine hills and mountains, rather than the high-altitude, often snow-capped, passes found in the main Alps. These routes offer significant elevation gain and panoramic views of lakes and the pre-Alpine landscape, providing a mountain-like experience with a focus on the unique beauty of the Brianza area.
The Corni di Canzo area, home to routes like Cow Pass, Bocchetta di Luera (1,209 m), and Forcella dei Corni, can be accessed from various starting points. Common routes include starting from Valmadrera or Canzo, often passing through locations like Terz’Alpe. These trails are generally well-marked, leading through forests and offering diverse paths to the passes and peaks.


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