The route
This verified alpine loop leaves Merano through Vinschgau, climbs the eastern Stelvio ramp from Prato allo Stelvio, descends to Bormio, then returns to the summit and crosses Umbrail Pass into Switzerland. The final stage follows Val Mustair and Glorenza back to Merano.
Stelvio and Umbrail are seasonal passes. Snow, maintenance, cycling events and congestion can close or restrict either road, so check Italian provincial and Swiss federal traffic sources immediately before travel.
Start early, avoid weekends where possible and never treat the hairpins as a timed drive. Buses, bicycles, motorcycles and oncoming vehicles regularly need more space than expected.
