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Martha Marks

Wide panoramic view of blue sky and clouds over the beautiful rock wall at Cathedral Gorge State Park in Nevada
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Dawn light on orange hoodoos, a pine tree, and the distant landscape at Bryce Canyon National Park in southern Utah
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Early morning light on Bryce Canyon National Park in southern Utah
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In early morning, a herd of deer grazes in a wet meadow in the Fruita District of Capitol Reef National Park in southern Utah
Boyhood home of LeRoy Parker, aka Butch Cassidy, a popular feature of the world-famous “Paiute Trail” on SR 89 in central Utah
Boyhood home of LeRoy Parker, aka Butch Cassidy, a popular feature of the world-famous “Paiute Trail” on SR 89 in central Utah
Waves ripple across tranquil Big Bear Lake in the San Bernardino National Forest of southern California
Atmospheric morning light on Capitol Reef National Park as seen from 9,000’ Boulder Mountain and Utah's Scenic Byway 12
Early morning light on massive rock cliffs and blowing trees in Capitol Reef National Park in Utah
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Early morning light on massive rock cliffs and blowing trees in Capitol Reef National Park in Utah
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In early morning light, the Pahranagat Mountains reflect on the lake at Pahranagat National Wildlife Refuge in Nevada
In early morning light, the Pahranagat Mountains reflect on the lake at Pahranagat National Wildlife Refuge in Nevada
Closeup of cultivated sunflowers blowing in the wind across an agricultural field in central Nebraska in September
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Bison graze in tall grass at Antelope Island State Park, in the middle of the Great Salt Lake in Utah
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Many Cliff Swallows fly around a mud nest under the eave of a building, with sound 2
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Closeup of Pintail Ducks in a marsh in autumn at Bosque del Apache National Wildlife Refuge in New Mexico
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Closeup view of marsh grasses in autumn and early-morning light at Bosque del Apache National Wildlife Refuge in New Mexico
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The Pecos River flows from its headwaters through Pecos River Canyon State Park toward the town of Pecos, New Mexico
Trees and shrubs frame historic 19th and 20th century buildings in and around the Plaza in Santa Fe, New Mexico, USA
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Dramatic mountain landscape at Echo Canyon State Park in Lincoln County near Pioche, Nevada
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Dramatic mountain landscape at Echo Canyon State Park in Lincoln County near Pioche, Nevada
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Dramatic mountain landscape at Echo Canyon State Park in Lincoln County near Pioche, Nevada
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Dramatic mountain landscape at Echo Canyon State Park in Lincoln County near Pioche, Nevada
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Reservoir and recreational lake at Echo Canyon State Park in Lincoln County near Pioche, Nevada
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Reservoir and recreational lake at Echo Canyon State Park in Lincoln County near Pioche, Nevada
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Dramatic mountain landscape at Echo Canyon State Park in Lincoln County near Pioche, Nevada
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Cliff Swallows in mud nests under the eave of a building, with sound
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"No Kings” political protest rally on the historic Plaza in Santa Fe, New Mexico on March 28, 2026
Ultrawide panorama of golden evening light on I. B. Perrine Bridge and the Snake River at Twin Falls, Idaho
Mule Deer in natural habitat in Echo Canyon State Park in rural Nevada
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Mule Deer in natural habitat in Echo Canyon State Park in rural Nevada
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Mule Deer in natural habitat in Echo Canyon State Park in rural Nevada
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Mule Deer in natural habitat in Echo Canyon State Park in rural Nevada
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Closeup of a Horned Lark in a field at Alamosa National Wildlife Refuge in Colorado
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Cliff Swallow enters and leaves its mud nest under the eave of a building, with sound 5
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Cliff Swallow flies in and out of its mud nest under the eave of a building, with sound
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Ultra-wide panoramic image of dramatic rocky cliffs along Utah’s Scenic Byway 95, the Bicentennial Highway
Panorama of cottonwoods and cliffs at Hog Springs Recreational Area, an oasis in the desert on Utah SR 95, the Bicentennial Highway
Two alert White-tailed Prairie Dog sentinels, one barks alarm at Ouray National Wildlife Refuge in Utah
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View of Utah State Route 9, the Zion-Mount Carmel Highway, as it passes through Zion National Park
Trees that burned during the July 2020 "Bridge Fire" at Bryce Canyon National Park in Utah
“Survivor trees” that burned and still lived after the July 2020 "Bridge Fire" at Bryce Canyon National Park in Utah
Ultrawide panorama of trees that burned during the July 2020 "Bridge Fire” at Bryce Canyon National Park in Utah
Dawn light on the rocky bluffs and windblown trees of Zion National Park in southern Utah
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Colorful, windblown landscape at Coral Pink Sand Dunes State Park in southern Utah
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Snow-capped San Francisco Peaks under spectacular clouds near Flagstaff, Arizona, as seen from across the prairie near I-40
The legendary Pecos River flows over rocks in Pecos River Canyon State Park in autumn in New Mexico
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Pinyon pines, or piñones, and juniper trees at Bluewater Lake State Park, a popular recreational spot in northwestern New Mexico
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Male Western Bluebird in a juniper tree under a pinyon pine in Bluewater Lake State Park in northwestern New Mexico
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Trees and shrubs frame historic 19th and 20th century buildings in and around the Plaza in Santa Fe, New Mexico, USA
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The legendary Pecos River flows over rocks in Pecos River Canyon State Park in autumn in New Mexico
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In summer, wildflowers grow along the Cimarron River on the Enchanted Circle Scenic Byway near Eagle Nest in northern New Mexico
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Cimarron River flows through Cimarron Canyon State Park in the Sangre de Cristo Mountains, along the Enchanted Circle Scenic Byway near Eagle Nest, New Mexico
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Panoramic video of the red rocks of Valley of Fire State Park, a public recreation and nature preservation area in Clark County, Nevada
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Landscape view of the red rocks of Valley of Fire State Park, a public recreation and nature preservation area in Clark County, Nevada
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Landscape view of the red rocks of Valley of Fire State Park, a public recreation and nature preservation area in Clark County, Nevada
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Closeup of Joshua Trees and Mesquite in the Mojave Desert of Nevada
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Pink flowers of Wild Bergamot, or Bee Balm, and other wildflowers and grasses wave in the breeze on an Illinois prairie
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A mass of Queen Anne’s Lace sways in the breeze on a prairie in Lakewood Forest Preserve Lake County, Illinois
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Pink flowers of Wild Bergamot, or Bee Balm, and other wildflowers wave in the breeze on an Illinois prairie
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Pink flowers of Wild Bergamot, or Bee Balm, and other wildflowers wave in the breeze on an Illinois prairie
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Blue Flag iris, a native species, blooms in wetlands or marshes across North America
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Tall Purple Penstemons in summer in northern New Mexico's Sangre de Cristo Mountains
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A Chihuahuan Meadowlark, a newly recognized species, preens on the prairie in northeastern New Mexico
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A Chihuahuan Meadowlark, a newly recognized species, on the prairie in northeastern New Mexico
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Closeup view of an Osprey or Fish Hawk eating a fish atop a power pole at Lake Mead in Nevada, with blue sky background
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Burrowing Owl on the prairie at Maxwell National Wildlife Refuge in New Mexico, Part 3 of 6 in sequence
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Cliff Swallows in mud nests under the eave of a building, with sound
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Closeup of a Rocky Mountain Bee Plant on the prairie at Rocky Mountain Arsenal National Wildlife Refuge near Denver, Colorado
Male Red-winged Blackbird preens in a cattail marsh, with sound
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Two Red-winged Blackbirds in marsh grasses in autumn in Alamosa National Wildlife Refuge
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A flock of American Avocets rests and preens in beautiful ripply water at Antelope Island State Park in Utah
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Female Elk grazes and grooms on the prairie at Rocky Mountain Arsenal National Wildlife Refuge near Denver, Colorado
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A herd or family of Mule Deer in their natural habitat at Bears Ears National Monument in Utah
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Bison graze in tall grass at Antelope Island State Park in Utah, as birds fly around and land on them
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Bison graze in tall grass at Antelope Island State Park, in the middle of the Great Salt Lake in Utah
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Bison graze in tall grass at Antelope Island State Park, in the middle of the Great Salt Lake in Utah
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An alert White-tailed Prairie Dog sentinel watches and grooms on the windy plain at Ouray National Wildlife Refuge in Utah
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Flock of Canada Geese fly in formation against a blue sky in autumn
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Male Gambel's Quail in southern Arizona in spring
Male Red-winged Blackbird sings and displays his epaulets, closeup shot with sound
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Panorama of Nevada Highway 169 as it passes through Valley of Fire State Park on its way from I-15 to Lake Mead
View of Nevada Highway 169 as it passes through colorful Valley of Fire State Park on its way from I-15 to Lake Mead
Panorama of dawn light on iconic red Aztec sandstone formations at Valley of Fire State Park in Nevada
Dawn light on Nevada Highway 169 as it passes through Valley of Fire State Park on its way from I-15 to Lake Mead
Visitors to the Atlatl Rock Overlook, an elevated metal staircase and platform, enjoy sweeping views of Valley of Fire State Park in Nevada
Vertical panorama of a fascinating red sandstone formation in Valley of Fire State Park in Nevada
Evening light turns red sandstone formations orange in Valley of Fire State Park in Nevada, square image with copy space
View of the iconic red Aztec sandstone and muted gray limestone formations at Valley of Fire State Park in Nevada
Dawn light on the tents-only area of the campground at Valley of Fire State Park in Nevada
Iconic Red Aztec sandstone formations abound at Valley of Fire State Park in Nevada
Iconic Red Aztec sandstone formations abound at Valley of Fire State Park in Nevada
Iconic red Aztec sandstone formations abound at Valley of Fire State Park in Nevada
Iconic red Aztec sandstone formations abound at Valley of Fire State Park in Nevada
Iconic red Aztec sandstone formations abound at Valley of Fire State Park in Nevada
Vertical panorama of a red Aztec sandstone formation and native desert plants at Valley of Fire State Park in Nevada
Red Aztec sandstone formations and native desert plants at Valley of Fire State Park in Nevada
Dawn light on iconic red Aztec sandstone formations at Valley of Fire State Park in Nevada
Dawn light on iconic red Aztec sandstone formations at Valley of Fire State Park in Nevada
Dawn light on iconic red Aztec sandstone formations at Valley of Fire State Park in Nevada