On May 24, 1869, John Wesley Powell and nine crewmen in four wooden rowboats set off down the Green River to map the final blank spot on the American map. Three

With gushing springs, clear-water streams, lush hardwood forests, and limestone bluffs rising hundreds of feet, the Ozarks offer enough paddling to fill a lifet

Drawing on rarely examined diaries and journals, Down the Great Unknown is the first book to tell the full, dramatic story of the Powell expedition. On May 24,

The epic story of the fastest boat ride in history, on a hand-built dory named the "Emerald Mile," through the heart of the Grand Canyon on the Colorado river.

Reproduction of the original. The publishing house Megali specialises in reproducing historical works in large print to make reading easier for people with impa