The bottom layer of rock at Bryce Canyon is the top layer at Zion, and the bottom layer at Zion is the top layer at the Grand Canyon
Navajo Sandstone is comprised of thick layers of cross-bedded sandstone formed by windblown sand
Angels Landing (5,785') rises 1500' from the Zion Canyon floor and Virgin River, which wraps around its base.
Pressure from overlying sedimentary layers combined with iron oxide, calcium carbonate and silica to transform deposits into stone
The West Rim Trail climbs nearly two miles of rough-pour switchbacks up the west canyon wall between the Virgin River bottom and Refrigerator Canyon
The Virgin River drops roughly nearly 7,800' in the 160 miles it travels from its origin at Navajo Lake to Lake Mead
Sediments from which the Zion landscape is carved at one point piled up over 10,000'
Short sections between Cabin Spring and the Angels Landing spur run across narrow, exposed ledges that can be unsafe to pass when wet
Zion National Park ranges from 8,726' on Horse Ranch Mountain to 3,666' in Coal Pits Wash
Bluestem Penstemon is in the Figwort Family, a large and complex group with many parasitic and semi-parasitic members
Rock layers in Zion were deposited 110 –270 M years ago, and only in recent (geologic) time have they been uplifted and erode
In March 2009 the Omnibus Public Land Management Act designated 124,406 acres of Zion National Park as Wilderness
The Pale Evening Primrose genus name Oenothera means 'wine-scented', referring to the use of its roots in wine making
Steep canyon walls create areas of near perennial shade with nicknames such as 'Little Siberia'
Mariposa Lily's genus name 'Calochortus' is from the Greek word 'kalos', which means beautiful
Water falling from Zion's high plateaus has greater velocity than low lying areas and cuts deep, narrow canyons
Paintbrush is a semi-parasitic plant that survives drought by attaching to roots of other plants and siphoning off water
High sections of the West Rim Trail run across ponderosa-topped mesas, which are periodically culled by natural, low-intensity fires
Globe Mallow has been found to be an effect defense against certain invasive plant species