Referring to the polka-dot patterns near the Grand Canyon in a similar context ... on-field investigation are required to ...

A Packard car en route to Flagstaff from the Canyon driven by Mr. Denger, a Phoenix rancher, accompanied by a party of ladies, was right behind and took a turn at the horses, one of which lunged ...

The man who led a landmark attempt to navigate the entire length of the Grand Canyon did not exactly look ... This is the mystery of risk: What makes some humans willing to jeopardize so much ...