Life Jackets are for Everyone. A life jacket (or Personal Flotation Device - PFD) is the single most important piece of equipment on your boat and the most important consideration should be size. More than two-thirds of all boating fatalities are drowning incidents and 90% of drowning victims were not wearing a life jacket.
The Grand Canyon in the southwestern United States is located entirely in the state of Arizona. (also parts of Navada and Utah.
Grand Canyon is located on the Colorado Plateau. This geologic province is a large area in the Southwest characterized by nearly horizontal sedimentary rocks lifted 5,000 to 13,000 feet above sea level.hose rock outcrops suggest that 4,000 to 8,000 feet of sedimentary layers from the Mesozoic, also known as the age of dinosaurs, once covered the Grand Canyon area. Layers from the Cenozoic era (the age of mammals) are limited to western Grand Canyon and terraces near the river.