MYRlADS OF GLOWING SPIRES, Bryce Canyon National Park. Bryce in reality is not a canyon; it is a great bowl or amphitheater 3 miles long and 2 miles wide, carved a thousand feet deep into red and white or pale lemon sandstone and filled with an almost endless variety of forms carved by erosion. It is difficult to tell which is the more impressive—the weird, fantastic shapes or the brilliant exotic color that glows throughout.