"This is a guide for canoeing, kayaking or rafting the section of the Rio Grande in Big Bend National Park beginning at Terlingua Creek, the exit point for Santa Elena Canyon, and ending at the bridge at La Linda, the starting point for trips through the Lower Canyons."--Introduction.

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, 1869 a one-armed Civil War veteran, John Wesley Powell and a ragtag band of nine mountain men embarked on the last great quest in the American West. The Grand Canyon, not explored before, was as mysterious as Atlantis—and as perilous. The ten men set out from Green River Station, Wyoming Territory down the Colorado in four wooden rowboats. Ninety-nine days later, six half-starved wretches came ashore near Callville, Arizona. Lewis and Clark opened the West in 1803, six decades later Powell and his scruffy band aimed to resolve the West’s last mystery. A brilliant narrative, a thrilling journey, a cast of memorable heroes—all these mark Down the Great Unknown, the true story of the last epic adventure on American soil.

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.

The 1848 treaty of Guadalupe Hidalgo that ended the Mexican-American War described a boundary between the two countries that was to be ascertained by a joint boundary commission effort. The section of the boundary along the Rio Grande from Presidio to the mouth of the Pecos River was arguably the most challenging, and it was surveyed by two American parties, one led by civilian surveyor M. T. W. Chandler in 1852, and the second led by Lieutenant Nathaniel Michler in 1853. Our understanding of these two surveys across the greater Big Bend has long been limited to the official reports and maps housed in the National Archives and never widely published. The discovery by Orville B. Shelburne of the journal kept by Dr. Charles C. Parry, surgeon-botanist-geologist for the 1852 party, has dramatically enriched the story by giving us a firsthand view of the Chandler boundary survey as it unfolded. Parry’s journal forms the basis of From Presidio to the Pecos River, which documents the day-to-day working of the survey teams. The story Shelburne tells is one of scientific exploration under duress—surveyors stranded in towering canyons overnight without food or shelter; piloting inflatable rubber boats down wild rivers; rising to the challenges of a profoundly remote area, including the possibility of Indian attack. Shelburne’s comparison of the original boundary maps with their modern counterparts reveals the limitations of terrain and equipment on the survey teams. Shelburne's book provides a window on the adventure, near disaster, and true accomplishment of the surveyors’ work in documenting the course of the Rio Grande across the Big Bend region.

From the canyons of Big Bend to the cypress swamps of Pine Island Bayou, the waters of Texas have something for most every type of paddler and every paddling mood. One might float the diminutive Comal River, argued to be the shortest river in the world. Another might dig deep and follow the four-day, 260-mile route of the Texas Water Safari, which Canoe & Kayak Magazine referred to as “The World’s Toughest Canoe Race.” Whitewater is here too. Lakes are as well. And, the Texas Gulf Coast is home to sandy beaches, knobby mangroves, and sea grass flats. Meanwhile, Texas is home to some of the fastest growing cities in America. And, paddling is the fastest growing outdoor sport in the country. “Paddling Texas” is a guide for those who are new to either and all those who love both. Featured trips offer easy access, secure environments, good facilities, great fishing, superb wildlife viewing, and beautiful scenery. “Paddling Texas” gives recreational paddlers and anglers all the information they’ll need to paddle many of the best trips in Texas.