Timed to coincide with the anniversary of the Lewis and Clark expedition is this remarkable account of Alexander Mackenzie -- the explorer who beat Lewis and Clark across the North American continent. Mackenzie accomplished this feat an astounding twelve years before the Corps of Discovery. Drawing extensively on the journals of Mackenzie and other turn-of-the-century explorers -- and featuring historical and contemporary photographs, illustrations, and maps -- Hayes presents a lively portrait of the explorer who both preceded Lewis and Clark and provided an impetus for their expedition.