Greg Witt, adventure guide and author, lives the adventures he writes about.

His daring journeys have taken him to every corner of the globe. He has guided mountaineering expeditions in the Alps and Andes and paddled wild rivers in the Americas. He has dropped teams into golden slot canyons, trudged through deep jungles in Africa, Central America, and Asia, and guided archaeological expeditions across the parched Arabian Peninsula.

Some weeks, Greg hikes more miles than he drives, which means he wears out his boots faster than he wears out tires. He has crossed the Grand Canyon on foot more than a dozen times, climbed Colorado's three highest peaks in three days, and while guiding in the Alps hiked over 700 miles, gaining nearly 100,000 vertical feet?the equivalent of climbing Everest nine times. His passion for adventure always focuses on sharing the experience with others through guiding, presentations and his engaging writing style.

Greg is the author of 60 Hikes within 60 Miles: Salt Lake City (Menasha Ridge Press) and Make the Most of Your Time on Earth: A Rough Guide to the World (contributing editor). His featured releases include Ultimate Adventures: A Rough Guide to Adventure Travel (Rough Guides, September 2008), and Exploring Havasupai: A Destination Guide to the Heart of the Grand Canyon (Menasha Ridge Press, August 2008).