 and experience one of the treasures that Pete and I came to appreciate the most, which is the silence and the stillness that the landscape is incapable of encompassing. That, in and of itself, is no more extraordinary than anything that happened to us over the course of our journey. And the second thing is that although this place looks monumental and eternal, it's incredibly fragile. It's a desert wilderness. It's beset by a whole host of economic development projects that threaten the integrity of both the park and the canyon.