Travelers are voting Kendrick Mountain Wilderness as the best nature reserve in Grand Canyon National Park. There are 1 nature reserve near Valle a city just 32 km from Grand Canyon National Park and 3 nature reserves near Flagstaff which is 61 km distant. The most popular of these are Kendrick Mountain Wilderness near Valle and Munds Mountain Wilderness in Flagstaff. You can find 15 nature reserves in Arizona and 152 nature reserves in the country of United States. Our members favorite in Arizona is Tonto National Monument and Weedon Island Preserve is the top pick in United States. Want more? Check out our map of nature reserves in Grand Canyon National Park.