At once an incredible adventure narrative and a penetrating biographical portrait, The River of Doubt is the true story of Theodore Roosevelt's harrowing exploration of one of the most dangerous rivers on earth.

Traditionally, Americans learned in school that the ancestors of the people who inhabited the Western Hemisphere at the time of Columbus' landing had crossed the Bering Strait 12,000 years ago; existed mainly in small nomadic bands; and lived so lightly on the land that the Americas were, for all practical purposes, still a vast wilderness. But as Charles C. Mann now makes clear, archaeologists and anthropologists have spent the last 30 years proving these and many other long-held assumptions wrong.

The number one New York Times best seller by Pulitzer Prize-winning historian David McCullough rediscovers an important chapter in the American story that's "as resonant today as ever" (The Wall Street Journal) - the settling of the Northwest Territory by courageous pioneers who overcame incredible hardships to build a community based on ideals that would define our country.

In 1803, President Thomas Jefferson selected his personal secretary, Captain Meriwether Lewis, to lead a voyage up the Missouri River, across the forbidding Rockies, and - by way of the Snake and the Columbia rivers - down to the Pacific Ocean. Lewis and his partner, Captain William Clark, endured incredible hardships and witnessed astounding sights. With great perseverance, they worked their way into an unexplored West. When they returned two years later, they had long since been given up for dead.

More than 200 million years ago, geological forces split apart the continents. Isolated from each other, the two halves of the world developed radically different suites of plants and animals. When Christopher Columbus set foot in the Americas, he ended that separation at a stroke. Driven by the economic goal of establishing trade with China, he accidentally set off an ecological convulsion as European vessels carried thousands of species to new homes across the oceans.

From the perilous ocean crossing to the shared bounty of the first Thanksgiving, the Pilgrim settlement of New England has become enshrined as our most sacred national myth. Yet, as best-selling author Nathaniel Philbrick reveals in his spellbinding new book, the true story of the Pilgrims is much more than the well-known tale of piety and sacrifice; it is a 55-year epic that is at once tragic, heroic, exhilarating, and profound.

In 1528, a mission set out from Spain to colonize Florida. But the expedition went horribly wrong: Delayed by a hurricane, knocked off course by a colossal error of navigation, and ultimately doomed by a disastrous decision to separate the men from their ships, the mission quickly became a desperate journey of survival. Of the 300 men who had embarked on the journey, only four survived - three Spaniards and an African slave.

Alexander von Humboldt (1769-1859) was an intrepid explorer and the most famous scientist of his age. His restless life was packed with adventure and discovery, whether climbing the highest volcanoes in the world or racing through anthrax-infested Siberia. He came up with a radical vision of nature, that it was a complex and interconnected global force and did not exist for man's use alone. Ironically, his ideas have become so accepted and widespread that he has been nearly forgotten.

"Dr. Livingstone, I presume?" So goes the signature introduction of New York Herald star journalist Henry Morton Stanley to renowned explorer Dr. David Livingstone, who had been missing for six years in the wilds of Africa. Into Africa ushers us into the meeting of these remarkable men. In 1866, when Livingstone journeyed into the heart of the African continent in search of the Nile's source, the land was rough, unknown to Europeans, and inhabited by man-eating tribes.

Robert Morgan's Gap Creek was an Oprah's Book Club selection and a phenomenal New York Times best-seller. Here he turns his talent to chronicling the life of American frontier legend Daniel Boone.

Elegantly told against a haunting melodic backdrop, Crossing Open Ground's brilliant descriptions will sweep you into a new perspective - the land both gives us strength and molds our souls.

This best-selling, groundbreaking exploration of the Far North is a classic of natural history, anthropology, and travel writing.

I hate every wave of the ocean', the seasick Charles Darwin wrote to his family during his five-year voyage on the H.M.S. Beagle. It was this world-wide journey, however, that launched the scientists career.

In 1804, John Colter set out with Meriwether Lewis and William Clark on the first US expedition to traverse the North American continent. During the 28-month ordeal, Colter served as a hunter and scout, and honed his survival skills on the western frontier. But when the journey was over, Colter stayed behind. He spent two more years trekking alone through dangerous and unfamiliar territory, charting some of the West's most treasured landmarks.

The career of John Charles Frémont (1813-90) ties together the full breadth of American expansionism from its 18th-century origins through its culmination in the Gilded Age. Tom Chaffin's biography demonstrates Frémont's vital importance to the history of American empire and illuminates his role in shattering long-held myths about the ecology and habitability of the American West.

In 1804, John Colter set out with Meriwether Lewis and William Clark on the first US expedition to traverse the North American continent. During the 28-month ordeal, Colter served as a hunter and scout, and honed his survival skills on the western frontier. But when the journey was over, Colter stayed behind. He spent two more years trekking alone through dangerous and unfamiliar territory, charting some of the West's most treasured landmarks.

Mountain man and fur trader Jedediah Smith casts a heroic shadow. He was the first Anglo-American to travel overland to California via the Southwest, and he roamed through more of the West than anyone else of his era. His adventures quickly became the stuff of legend. Using new information and sifting fact from folklore, Barton H. Barbour now offers a fresh look at this dynamic figure.

Encounters at the Heart of the World concerns the Mandan Indians, iconic Plains people whose teeming, busy towns on the upper Missouri River were, for centuries, at the center of the North American universe. We know of them mostly because Lewis and Clark spent the winter of 1804-1805 with them, but why don't we know more? Who were they really? In this extraordinary book, Elizabeth A. Fenn retrieves their history by piecing together important new discoveries in archaeology, anthropology, geology, climatology, epidemiology, and nutritional science.

In 1528, a mission set out from Spain to colonize Florida. But the expedition went horribly wrong: Delayed by a hurricane, knocked off course by a colossal error of navigation, and ultimately doomed by a disastrous decision to separate the men from their ships, the mission quickly became a desperate journey of survival. Of the 300 men who had embarked on the journey, only four survived - three Spaniards and an African slave.

If you have ever wondered what is was like to be an explorer in the unspoiled American West of the early 1800s, then this is the audiobook for you. Not only a groundbreaking work of American history by critically acclaimed author Robert M. Utley, A Life Wild and Perilous is also a dramatic story of innovation and survival. Here is your chance to live in the very heart of the American wilderness with legendary trappers and mountain men like Jim Bridger, Kit Carson, Tom Fitzpatrick, and Jedediah Smith.

In 1839 rumors of extraordinary yet baffling stone ruins buried within the unmapped jungles of Central America reached two of the world's most intrepid travelers. Seized by the reports, American diplomat John Lloyd Stephens and British artist Frederick Catherwood sailed together out of New York Harbor on an expedition into the forbidding rainforests of present-day Honduras, Guatemala, and Mexico. What they found would rewrite the West's understanding of human history.

In Old Man River, Paul Schneider tells the story of the river at the center of America's rich history - the Mississippi. Some fifteen thousand years ago, the majestic river provided Paleolithic humans with the routes by which early man began to explore the continent's interior. Since then, the river has been the site of historical significance, from the arrival of Spanish and French explorers in the 16th century to the Civil War. George Washington fought his first battle near the river, and Ulysses S. Grant and William T. Sherman both came to President Lincoln's attention after their spectacular victories on the lower Mississippi.

Following in the footsteps of the greatest Spanish adventurers, Michael Wood retraces the path of the conquistadors from Amazonia to Lake Titicaca, and from the deserts of North Mexico to the heights of Machu Picchu. As he travels the same routes as Hernán Cortés, Francisco, and Gonzalo Pizarro, Wood describes the dramatic events that accompanied the epic sixteenth-century Spanish conquest of the Aztec and Inca empires.

In the summer of 1846, the Army of the West marched through Santa Fe, en route to invade and occupy the Western territories claimed by Mexico. Fueled by the new ideology of “Manifest Destiny,” this land grab would lead to a decades-long battle between the United States and the Navajos, the fiercely resistant rulers of a huge swath of mountainous desert wilderness.

Meriwether Lewis discovered far more than the history books tell - ancient civilizations, strange monuments, "nearly white, blue-eyed" Indians, and evidence that the American continent was visited long before the first European settlers arrived. And he was murdered to keep it all secret. Examining the shadows and cracks between America's official version of history, Xaviant Haze and Paul Schrag propose that the America of old taught in schools is not the America that was discovered by Lewis and Clark and other early explorers.

In the years 1804, 1805, and 1806, two men commanded an expedition which explored the wilderness that stretched from the mouth of the Missouri River to where the Columbia enters the Pacific, and dedicated to civilization a new empire. Their names were Meriwether Lewis and William Clark. This book relates that adventure from it’s inception through its completion as well as the effect the expedition had upon the history of the United States.

From the bestselling author of Leviathan comes this sweeping narrative of one of America’s most historically rich industries. Beginning his epic history in the early 1600s, Eric Jay Dolin traces the dramatic rise and fall of the American fur trade industry, from the first Dutch encounters with the Indians to the rise of the conservation movement in the late nineteenth century.

The story of the world's largest, longest, and best-financed scientific expedition of all time, triumphantly successful, gruesomely tragic, and never before fully told. The immense 18th-century scientific journey, variously known as the Second Kamchatka Expedition or the Great Northern Expedition, from St. Petersburg across Siberia to the coast of North America, involved over 3,000 people and cost Peter the Great over one-sixth of his empire's annual revenue.

On a chance visit to Plymouth Rock, Tony Horwitz makes an unsettling discovery. A history buff since early childhood, expensively educated at university - a history major, no less! - he's reached middle age with a third-grader's grasp of early America. In fact, he's mislaid more than a century of American history, the period separating Columbus' landing in 1492 from the arrival of English colonists at Jamestown in 16-oh-something. Did nothing happen in between?

At a time when the edge of American settlement barely reached beyond the Appalachian Mountains, two visionaries, President Thomas Jefferson and millionaire John Jacob Astor, foresaw that one day the Pacific would dominate world trade as much as the Atlantic did in their day. Just two years after the Lewis and Clark expedition concluded in 1806, Jefferson and Astor turned their sights westward once again. Thus began one of history's dramatic but largely forgotten turning points in the conquest of the North American continent.