More than 4 million people visit Grand Canyon National Park each year.

"The region ... is, of course, altogether valueless. It can be approached only from the south, and after entering it there is nothing to do but leave. Ours has been the first, and will doubtless be the last, party of whites to visit this profitless locality."

--Lieutenant Joseph C. Ives on his 1857-58 expedition to the Grand Canyon

Photo by Juli Kearns; used with permission.