More than 1,500 people attempt to walk the entire John Muir Trail ... John Muir Wilderness. The JMT goes through lake filled valleys and steep mountain passes here. Through this area there are ...

Corbis Yosemite Falls in Yosemite National Park Chee-Onn Leong / iStockphoto The naturalist John ... man, Muir felt he was a student in what he called the ‘University of the Wilderness ...