Jeff Goulden Grand Canyon National Park Pictures, Images and Stock Photos

Grand Canyon, Arizona, USA - January 1, 2013: A young woman, standing in the snow, is photographing the Grand Canyon with a smart phone. This picture was taken from Yavapai Point in Grand Canyon National Park, Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 17, 2011: The American flag flies in front of the Grand Canyon Visitor Center at Mather Point.

Winter is a special time at the Grand Canyon. Snow clings to the South Rim while the lower elevations of the canyon remain snow-free and warm. This scene was photographed on the South Rim Trail in Grand Canyon National Park, Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 15, 2011: Tourists are watching the sun set over the Grand Canyon from Mather Point.

Sixty million years ago the west side of Bright Angel Fault was lifted higher than the east side, creating the canyon that we now see. The exposed walls of Bright Angel Canyon allow us to see the geological history of the area. Tropical seas, coastal beaches, sand dunes, swamps, lagoons, and Sahara-like deserts are represented by the horizontal layers that are exposed. The upper five layers of stacked rock records 70 million years of rising and falling sea levels. The limestone layers represent shallow sea environments, sandstone layers mean sandy beaches or dunes, while shale layers translate to mud flats, swamps, or coastal plains. This picture of Bright Angel Canyon was taken at sunrise from Bright Angel Point on the North Rim of Grand Canyon National Park, Arizona, USA.

The Rock Squirrel (Spermophilus variegatus) is fairly large ground squirrel but can also be seen climbing boulders, rocks and trees. It is typically 17-21 inches long, with a bushy tail up to 8 inches long. Rock squirrels are grayish-brown, with some patches of cinnamon color. They have a light-colored ring around their eyes and pointed ears that project well above their heads. In the northern reach of their habitat, rock squirrels hibernate during the colder months of the year. In southern areas, rock squirrels may not hibernate at all. The diet of the rock squirrel is predominantly herbivorous, consisting mostly of leaves, stems and seeds. They may also eat some insects and other small animals. Because of high human visitation, rock squirrels have become the most dangerous animals at the national parks of the American Southwest. Rock squirrels attack more tourists at the Grand Canyon than any other wild animal. Attacks have become so common that park rangers have begun warning tourists about the dangers. This rock squirrel was photographed at Yavapai Point in Grand Canyon National Park, Arizona, USA.

A young woman hiker is standing on the canyon rim near O'Neil Butte in Grand Canyon National Park, Arizona, USA.

Angels Window is a natural arch formed during the uplift of the Kaibab Plateau. During the uplift, stress and strain caused the limestone to fracture forming vertical joints that intersected the horizontal planes of the rock. Subsequent weathering over time eroded a hole or window in the rock. Angels Window now offers a view of the Colorado River through the hole and the unique experience of walking out over this natural arch to a viewpoint with spectacular views of the canyon below. Angels Window is on the North Rim of Grand Canyon National Park, Arizona, USA.

The Kaibab Plateau north of the Grand Canyon, at 8000 feet above sea level, supports a forest similar to that found in Canada. The cool moist climate is in sharp contrast to the deserts below. Spruce, fir and aspen populate these higher elevations and surround beautiful mountain meadows. Most destinations at the Grand Canyon are very popular tourist destinations. The hike to Cape Final is one place where one can find solitude. This view of the Grand Canyon was photographed from Cape Final on the North Rim of Grand Canyon National Park, Arizona, USA.

Mohave Point is a great place to see the Colorado River. It is also a great place to watch a sunset since you have unobstructed views to the west, north, and east of the Grand Canyon. Mohave Point is on the South Rim of Grand Canyon National Park, Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 15, 2011: A group of tourists enjoys the sunset over the Grand Canyon from Mather Point.

Grand Canyon National Park, Arizona, USA - May 15, 2011: Tourists are watching the sun set over the Grand Canyon from Mather Point.

During summer storms rainbows are frequently seen in and around the Grand Canyon. This unusual rainbow appeared below the rim at Powell Point in Grand Canyon National Park, Arizona.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene was photographed from Powell Point in Grand Canyon National Park, Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 16, 2011: This wrangler is leading a mule train up from the Grand Canyon on the South Kaibab Trail.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene was photographed from the South Kaibab Trail in Grand Canyon National Park, Arizona, USA.

Sixty million years ago the west side of Bright Angel Fault was lifted higher than the east side, creating the canyon that we now see. The exposed walls of Bright Angel Canyon allow us to see the geological history of the area. Tropical seas, coastal beaches, sand dunes, swamps, lagoons, and Sahara-like deserts are represented by the horizontal layers that are exposed. The upper five layers of stacked rock records 70 million years of rising and falling sea levels. The limestone layers represent shallow sea environments, sandstone layers mean sandy beaches or dunes, while shale layers translate to mud flats, swamps, or coastal plains. This picture of Bright Angel Canyon was taken from Bright Angel Point on the North Rim of Grand Canyon National Park, Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 17, 2011: These park visitors are at Hopi Point watching a storm approach the Grand Canyon.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This sunset scene was photographed from Mather Point in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene of O'Neil Butte was photographed from Cedar Ridge in Grand Canyon National Park, Arizona, USA.

The Rock Squirrel (Spermophilus variegatus) is fairly large ground squirrel but can also be seen climbing boulders, rocks and trees. It is typically 17-21 inches long, with a bushy tail up to 8 inches long. Rock squirrels are grayish-brown, with some patches of cinnamon color. They have a light-colored ring around their eyes and pointed ears that project well above their heads. In the northern reach of their habitat, rock squirrels hibernate during the colder months of the year. In southern areas, rock squirrels may not hibernate at all. The diet of the rock squirrel is predominantly herbivorous, consisting mostly of leaves, stems and seeds. They may also eat some insects and other small animals. Because of high human visitation, rock squirrels have become the most dangerous animals at the national parks of the American Southwest. Rock squirrels attack more tourists at the Grand Canyon than any other wild animal. Attacks have become so common that park rangers have begun warning tourists about the dangers. This rock squirrel was photographed at Yavapai Point in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene was photographed from Powell Point in Grand Canyon National Park, Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 17, 2011: The National Park System is often on the leading edge of conservation and energy efficiency. This couple is walking by the solar panels at the Grand Canyon Visitor Center near Mather Point.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This sunset scene was photographed from Mather Point in Grand Canyon National Park, Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 16, 2011: A group of hikers is descending into the Grand Canyon from Cedar Ridge on the South Kaibab Trail.

During summer storms rainbows are frequently seen in and around the Grand Canyon. This rainbow appeared over a juniper forest near the East Entrance in Grand Canyon National Park, Arizona.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This photograph was taken from Moran Point in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This photograph was taken from Grandview Point in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This photograph was taken from Moran Point in Grand Canyon National Park, Arizona, USA.

During summer storms rainbows are frequently seen in and around the Grand Canyon. This rainbow appeared over a juniper forest near the East Entrance in Grand Canyon National Park, Arizona.

Sixty million years ago the west side of Bright Angel Fault was lifted higher than the east side, creating the canyon that we now see. The exposed walls of Bright Angel Canyon allow us to see the geological history of the area. Tropical seas, coastal beaches, sand dunes, swamps, lagoons, and Sahara-like deserts are represented by the horizontal layers that are exposed. The upper five layers of stacked rock records 70 million years of rising and falling sea levels. The limestone layers represent shallow sea environments, sandstone layers mean sandy beaches or dunes, while shale layers translate to mud flats, swamps, or coastal plains. This picture of Bright Angel Canyon was taken from Bright Angel Point on the North Rim of Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene of hiking boots pointed over the canyon was photographed from Yavapai Point in Grand Canyon National Park, Arizona, USA.

Sixty million years ago the west side of Bright Angel Fault was lifted higher than the east side, creating the canyon that we now see. The exposed walls of Bright Angel Canyon allow us to see the geological history of the area. Tropical seas, coastal beaches, sand dunes, swamps, lagoons, and Sahara-like deserts are represented by the horizontal layers that are exposed. The upper five layers of stacked rock records 70 million years of rising and falling sea levels. The limestone layers represent shallow sea environments, sandstone layers mean sandy beaches or dunes, while shale layers translate to mud flats, swamps, or coastal plains. This picture of Bright Angel Canyon was taken from Bright Angel Point on the North Rim of Grand Canyon National Park, Arizona, USA.

Sixty million years ago the west side of Bright Angel Fault was lifted higher than the east side, creating the canyon that we now see. The exposed walls of Bright Angel Canyon allow us to see the geological history of the area. Tropical seas, coastal beaches, sand dunes, swamps, lagoons, and Sahara-like deserts are represented by the horizontal layers that are exposed. The upper five layers of stacked rock records 70 million years of rising and falling sea levels. The limestone layers represent shallow sea environments, sandstone layers mean sandy beaches or dunes, while shale layers translate to mud flats, swamps, or coastal plains. This picture of Bright Angel Canyon was taken from Bright Angel Point on the North Rim of Grand Canyon National Park, Arizona, USA.

Shoshone Point is one of the rare places you can experience solitude at the Grand Canyon National Park in Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 17, 2011: Hermit's Rest is one of the historic buildings designed by famed architect Mary Coulter. The stone structure was built in 1914. This group of visitors are milling about in front of the building.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene of a juniper tree on the canyon edge was photographed from O'Neil Butte in Grand Canyon National Park, Arizona, USA.

Pima Point is one of the best places along the South Rim of the Grand Canyon to see and hear the Colorado River. The point is located on the edge of a wide promontory which allows visitors to see over 40 miles of the canyon. Pima Point is located on the South Rim in Grand Canyon National Park, Arizona, USA.

The Hermit Trail is said to be built in the late 1800's by horsetheives. Prospectors of that era improved the trail. The railroad improved the trail further around 1910 to compete with the Camerons' Bright Angel Trail which charged a toll at the time. The Hermit Trail drops from the South Rim in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene was photographed from O'Neil Butte in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene of O'Neil Butte was photographed from Cedar Ridge in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene was photographed from Cedar Ridge in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene of O'Neil Butte was photographed from Cedar Ridge in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene of wild grasses was photographed from Cedar Ridge in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene of blue wildflowers was photographed from Cedar Ridge in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene of a lone juniper on the canyon edge was photographed from Cedar Ridge in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene was photographed from Cedar Ridge in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene was photographed from the South Kaibab Trail in Grand Canyon National Park, Arizona, USA.

The Rock Squirrel (Spermophilus variegatus) is fairly large ground squirrel but can also be seen climbing boulders, rocks and trees. It is typically 17-21 inches long, with a bushy tail up to 8 inches long. Rock squirrels are grayish-brown, with some patches of cinnamon color. They have a light-colored ring around their eyes and pointed ears that project well above their heads. In the northern reach of their habitat, rock squirrels hibernate during the colder months of the year. In southern areas, rock squirrels may not hibernate at all. The diet of the rock squirrel is predominantly herbivorous, consisting mostly of leaves, stems and seeds. They may also eat some insects and other small animals. Because of high human visitation, rock squirrels have become the most dangerous animals at the national parks of the American Southwest. Rock squirrels attack more tourists at the Grand Canyon than any other wild animal. Attacks have become so common that park rangers have begun warning tourists about the dangers. This rock squirrel was photographed at Yavapai Point in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. Ribbon Falls is about 6 miles north of the Colorado River in Grand Canyon National Park, Arizona, USA.

The Rock Squirrel (Spermophilus variegatus) is fairly large ground squirrel but can also be seen climbing boulders, rocks and trees. It is typically 17-21 inches long, with a bushy tail up to 8 inches long. Rock squirrels are grayish-brown, with some patches of cinnamon color. They have a light-colored ring around their eyes and pointed ears that project well above their heads. In the northern reach of their habitat, rock squirrels hibernate during the colder months of the year. In southern areas, rock squirrels may not hibernate at all. The diet of the rock squirrel is predominantly herbivorous, consisting mostly of leaves, stems and seeds. They may also eat some insects and other small animals. Because of high human visitation, rock squirrels have become the most dangerous animals at the national parks of the American Southwest. Rock squirrels attack more tourists at the Grand Canyon than any other wild animal. Attacks have become so common that park rangers have begun warning tourists about the dangers. This rock squirrel was photographed at Yavapai Point in Grand Canyon National Park, Arizona, USA.

The Turkey Vulture (Cathartes aura) will often sit with its wings spread In the early morning. This increases the surface area of the body so that the sun can more easily warm it. This vulture was found at Grandview Point in Grand Canyon National Park, Arizona, USA.

The Turkey Vulture (Cathartes aura) will often sit with its wings spread In the early morning. This increases the surface area of the body so that the sun can more easily warm it. This vulture was found at Grandview Point in Grand Canyon National Park, Arizona, USA.

The Turkey Vulture (Cathartes aura) will often sit with its wings spread In the early morning. This increases the surface area of the body so that the sun can more easily warm it. This vulture was found at Grandview Point in Grand Canyon National Park, Arizona, USA.

The Rock Squirrel (Spermophilus variegatus) is fairly large ground squirrel but can also be seen climbing boulders, rocks and trees. It is typically 17-21 inches long, with a bushy tail up to 8 inches long. Rock squirrels are grayish-brown, with some patches of cinnamon color. They have a light-colored ring around their eyes and pointed ears that project well above their heads. In the northern reach of their habitat, rock squirrels hibernate during the colder months of the year. In southern areas, rock squirrels may not hibernate at all. The diet of the rock squirrel is predominantly herbivorous, consisting mostly of leaves, stems and seeds. They may also eat some insects and other small animals. Because of high human visitation, rock squirrels have become the most dangerous animals at the national parks of the American Southwest. Rock squirrels attack more tourists at the Grand Canyon than any other wild animal. Attacks have become so common that park rangers have begun warning tourists about the dangers. This rock squirrel was photographed at Yavapai Point in Grand Canyon National Park, Arizona, USA.

The Grand Canyon is a steep-sided canyon carved by the Colorado River. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile. The canyon and adjacent north and south rims are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. In the Grand Canyon the carving of the Colorado River has exposed nearly two billion years of the earth's geological history and created some stunning scenery. This scene was photographed from Yavapai Point in Grand Canyon National Park, Arizona, USA.

Grand Canyon National Park, Arizona, USA - May 16, 2011: These hikers are hiking the South Kaibab trail on the South Rim of the Grand Canyon.

The Kaibab Plateau north of the Grand Canyon, at 8000 feet above sea level, supports a forest similar to that found in Canada. The cool moist climate is in sharp contrast to the deserts below. Spruce, fir and aspen populate these higher elevations and surround beautiful mountain meadows. This meadow is in the Kaibab National Forest near Jacob Lake, Arizona, USA.

The Kaibab Plateau north of the Grand Canyon, at 8000 feet above sea level, supports a forest similar to that found in Canada. The cool moist climate is in sharp contrast to the deserts below. Spruce, fir and aspen populate these higher elevations and surround beautiful mountain meadows. This meadow is in the Kaibab National Forest near Jacob Lake, Arizona, USA.

The Kaibab Plateau north of the Grand Canyon, at 8000 feet above sea level, supports a forest similar to that found in Canada. The cool moist climate is in sharp contrast to the deserts below. Spruce, fir and aspen populate these higher elevations and surround beautiful mountain meadows. This meadow is in the Kaibab National Forest near Jacob Lake, Arizona, USA.