The Great St. Bernard Pass connects the Swiss town of Martigny to Aosta in Italy. The route is well above the tree line, with winter temperatures dropping as low as -22 degrees Fahrenheit and snow packing up to 32 feet. A dangerous journey year-round, the route can be particularly hazardous in the spring, when avalanche season is in full swing. Regardless, pilgrims and travelers from as far back as ancient times used this pass to access Rome.
