Photo Credit: Glen Canyon Dam and Colorado River - Page, Arizona by user Jim Trodel


Have humans really tamed every inch of the world? On our overheated and overcrowded planet, are wild places now extinct? 

Environmental journalist Jason Mark took to the most rugged areas of the US to find out. In Satellites in the High Country, Mark proves that the mystery of the wild still exists todayand is more important than ever. Read an excerpt from Mark's travels below: