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Depending on how you link up the trails, the rim-to-rim (R2R) hike is about 24 miles (38 kilometers). The R2R hike is divided roughly into three parts. On each end is the steep hike out of the canyon and the middle third is a more moderate and smoother hike through a side canyon that is spectacular in it's own right.
The north rim has two main viewpoints towards the east, reached by the side road. One is Point Imperial, the highest in the park at an elevation of 8,803 feet, which apart from the canyon, here relatively shallow and less branched, also overlooks large areas of the Painted Desert and the Navajo Reservation. The second is Cape Royal (7,865 feet), perhaps the best of the north rim sites. The cape is 20 miles from AZ 67, right at the end of the road which becomes rather narrow and twisting over the last couple of miles as it runs along a steep sided ridge.