Wisconsin man takes month-long bike trip along the Mississippi River

In late August of last year, Roger Gray hopped across eight rocks at the mouth of the Mississippi River where it begins at Lake Itasca in northern Minnesota. Those eight rocks are all it takes to get from one side of the river to the other.

A month later, he found himself in New Orleans, where the river — at that point, about a half-mile wide — spills into the Gulf of Mexico.