Travel guide to the top of Chaschauna Pass

# Pass Chaschauna-Passo di Cassana

Want to tackle one of the Alps' most thrilling alpine crossings? Pass Chaschauna-Passo di Cassana sits at a jaw-dropping 2,698m (8,851ft) and straddles the Italy-Switzerland border, connecting Lombardy's Province of Sondrio with Switzerland's Maloja Region in Graubünden.

Fair warning: this isn't your typical mountain pass. The entire route is unpaved, and you'll need a serious 4x4 vehicle to even attempt it—though heads up, private cars aren't allowed. Bikes only, folks. The climb is absolutely relentless, with gradients hitting a brutal 30% and hairpin bends that'll have your heart racing. On the descent's initial stretch, watch your step (or pedal)—the terrain is so steep that dislodging rocks could send them tumbling onto the path below.

Nestled between the Stelvio National Park and the Swiss National Park, this route is true high-alpine territory. Come winter, though, you're out of luck—it's completely impassable from September through June. Even well into summer, snowfields can linger on the higher sections.

A fascinating historical touch: near the summit on the Italian side sits Rifugio Cassana, a former WWI barracks. The road itself is an old military route, engineered in 1912 to supply those very same wartime installations. Pretty cool to pedal through a century of alpine history!