The Big Drift is the result of winter snows and blowing winds. Located east of the Continental Divide along the Going-to-the-Sun Road, this snowdrift can accumulate over 100 feet deep. Winds push snow up and over the
The Big Drift is the result of winter snows and blowing winds. Located east of the Continental Divide along the Going-to-the-Sun Road, this snowdrift can accumulate over 100 feet deep. Winds push snow up and over the Continental Divide onto a thin ridge of rock (that was formed by glaciers), which is known as the Garden Wall.
In the spring, a helicopter surveys the area in preparation for snow removal of Going-to-the-Sun Road. They use GPS and visual 