Changing crampon sizes is a snap with the Grivel Valter Long Bar. Simply turn over the bar, and the retaining tooth automatically reduces size without tools or meticulous adjustment. Just be sure to keep track of right and left and you're good to go.
Arches National Park is known for its' remarkable natural red sandstone arches. With over 2,000 catalogued arches that range in size from a three-foot opening, to Landscape Arch which measures 306 feet from base to base, the park offers the largest concentration of natural arches in the world.
Most commonly found in the tundra of Rocky Mountain National Park, the pika is a close relative of the rabbits and hares, with two upper incisors on each side of the jaw, one behind the other. Being rock-gray in color, pikas are seldom seen until their shrill, metallic call reveals their presence.