Seventy-year-old Sean Sweeney had a unique way of training for his latest bicycle tour from Montana to Alaska -- he hauled sand.

The Adventure Cycling Association bike tour was his fourth long-distance tour since he bicycled cross country in 2002. To prepare for this 3,330-mile trek, he carried 50 pounds of sand in a BOB trailer up and down the Baltimore & Annapolis Trail in Maryland. ...   more »