The expedition down the Green and Colorado Rivers, he would later claim, "was not made for adventure, but purely for scientific purposes, geographic ... geology of the Grand Canyon and about ...

If you’re reading this story decades from now, say in 2066, hopefully a vast Grand Canyon wilderness, in the truest sense of the word, still exists. Your National Geographic Society membership ...

The majority of the canyon's services and facilities – campgrounds, lodges, guided tours, etc. – are located on the popular South Rim. Because the Grand Canyon is a national park, be aware ...