Have humans really tamed every inch of the world? On our overheated and overcrowded planet, are wild places now extinct? In Satellites in the High Country, environmental journalist Jason Mark travels to wilderness areas across the US, proving that the mystery of the wild still exists today. Listen as he joins host Michael Krasny on NPR's KQED-Forum to contemplate the meaning of wilderness in the human age. 

Then, don't forget to enter for a chance to win a 5-day, all expenses paid adventure to the Grand Canyon, led by Jason Mark!