Eureka Dunes and Last Chance range, late afternoon. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1152.html Dune field and Sangre de Christo mountains in winter. Great Sand Dunes National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0260.html Aerial view of the Great Kobuk Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4361.html Dunes and Cuyler Harbor, mid-day, San Miguel Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis10657.html Hills, Kelso Dunes, and Granit Moutains from a distance. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca33480.html Paragliders soaring above Marina sand dunes. California, USA http://www.terragalleria.com/california/picture.usca9539.html Pine trees on Umpqua dunes, Oregon Dunes National Recreation Area. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-central-coast/picture.usor45061.html Sand dune and ocean, early morning, Coast Guard Beach, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/truro-ma/picture.usma45679.html Path to ocean through dunes and tourists, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/provincetown-ma/picture.usma45731.html Sensuous forms in the sand, Mesquite Dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32559.html Sand dunes with snow patches. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0286.html Caribou tracks and ripples in the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4378.html Motorcyle down dune, Oregon Dunes National Recreation Area. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-central-coast/picture.usor45062.html Vegetation on tall dune, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/truro-ma/picture.usma45681.html Path between sand fences, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/provincetown-ma/picture.usma45736.html Sand dunes and Cuyler Harbor, afternoon, San Miguel Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis10656.html Kelso Dunes, sunset. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca9755.html Paragliders practising in sand dunes, Marina. California, USA http://www.terragalleria.com/california/picture.usca9538.html Mesquite Sand dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1147.html Distant view of Dunes and Crestone Peaks in late afternoon. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0295.html Aerial view of the Great Kobuk Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4362.html Pine trees and dunes, Oregon Dunes National Recreation Area. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-central-coast/picture.usor45058.html Reeds in Pilgrim Lake and parabolic dunes, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/truro-ma/picture.usma45662.html Sand Fence, tourist, and ocean late afternoon, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/provincetown-ma/picture.usma45729.html Sand dunes and Cuyler Harbor, afternoon, San Miguel Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis10662.html Bushes and Kelso Dunes. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca9752.html Ripples on Mesquite Sand Dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva2186.html Sand dunes with snow patches and Sangre de Christo range. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20562.html Animal tracks on the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4380.html Dune vegetation, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/truro-ma/picture.usma45682.html Dunegrass, Oregon Dunes National Recreation Area. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-central-coast/picture.usor45059.html Path to beach and ocean framed by sand fences, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/provincetown-ma/picture.usma45730.html Mesquite Sand dunes and Amargosa Range, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva2179.html Patch of sand, snow-covered dunes, Sangre de Christo mountains. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20558.html Ripples in the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4375.html Sand, fence, and animal tracks, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/truro-ma/picture.usma45685.html Tree skelons on dunes, Oregon Dunes National Recreation Area. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-central-coast/picture.usor45060.html Dunegrass and clouds, Race Point Beach, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/provincetown-ma/picture.usma45664.html Hiker on ridge, Mesquite Dunes, sunrise. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva5793.html Distant view of the dune field and Sangre de Christo mountains at sunset. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0288.html Sand dunes with spruce trees. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova21152.html All terrain vehicle on dune crest, Oregon Dunes National Recreation Area. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-central-coast/picture.usor45063.html Animal tracks in the sand, Race Point Beach, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/provincetown-ma/picture.usma45665.html Cracked mud and sand ripples, Mesquite Sand Dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32552.html Grass and dunes, morning. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa6033.html Dune grass, late afternoon, Race Point Beach, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/provincetown-ma/picture.usma45663.html Great Sand Dunes and boreal spruce forest. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4376.html Depression in dunes with sand ripples, Mesquite Sand Dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32550.html Wildflowers, grass prairie and dunes. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20570.html Sand ripples in Arctic dune field. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova21151.html Close-up of Sand ripples, sunrise. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32548.html Medano creek with shifting sands, dunes and Sangre de Christo mountains. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20572.html Dune field with boreal forest in the distance. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova21153.html Hiking towards tall dune, the Mesquite Dunes, sunrise. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva5794.html Patch of sand in snow-covered dunes. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20568.html Caribou tracks and ripples in the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4377.html Footprints in the sand leading towards mountain. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32555.html Flats, sand dunes, and snowy Sangre de Christo mountains. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20571.html The edge of the Great Sand Dunes with boreal forest below. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova21150.html Hiker on a ridge in the Mesquite Dunes, sunrise. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva5795.html Dunes, ridge and clouds. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa45152.html The edge of the Great Sand Dunes with the boreal taiga. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4381.html Mesquite bush and sand ripples, dawn. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32545.html Melting snow on the dunes. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20560.html Dune plants. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4373.html Sand ripples close-up, sunrise. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32547.html Dunes and Medano creek below snowy mountains. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa45143.html Pocket of Spruce trees in the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4374.html Sensuous forms, Mesquite Sand Dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32558.html Mendonca creek, dunes and Sangre de Christo mountains. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0291.html Edge of the Great Sand Dunes with tundra and taiga below. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4382.html Cracked mud and sand ripples, Mesquite Sand Dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32553.html Snowy Sangre de Cristo Mountains and clouds above dune field. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa45142.html Aerial view of the Arctic dune field. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4363.html Ripples on Mesquite Dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva20812.html Zig-zag pattern of sand amongst Snow on the dunes. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20567.html Caribou footprints and ripples in the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4379.html Ripples on Mesquite Sand Dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva20815.html Tall dunes and low clouds. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa45151.html Sensuous dune forms. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva20817.html Sand dunes with patches of snow seen from above. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20559.html Mesquite Sand Dunes and Tucki mountain, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1164.html Dune ridges. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0261.html Ripples, mesquite on sand dunes, dawn. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32542.html Medano creek, Sand Dunes, and Sangre de Cristo Mountains. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa6026.html Footprints in the sand. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32554.html Distant view of dunes and Sangre de Christo mountains in late afternoon. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0294.html Mud formations in the Mesquite sand dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1161.html Storm light illuminates portions of the dune field. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0290.html Mesquite Sand Dunes during a sandstorm. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1169.html Ghost Forest, skeletons of trees engulfed by sands. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20564.html Depression in dunes with sand ripples, Mesquite Sand Dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32551.html Sparse snow on the dunes at dawn. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20569.html Ripples on Mesquite Dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva20814.html Storm light illuminates portions of the dune field. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0289.html Dune ridges with photographer in the distance, Mesquite Sand Dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32560.html Dunes at dawn with snow and moon. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0303.html Sand dunes and mesquite bushes, sunrise. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32546.html Patches of uncovered sand in snow-covered dunes, mountains, and dark clouds. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20566.html Mud formations in the Mesquite sand dunes, early morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva21333.html Curve on snowy dunes. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0297.html Sand dunes and bushes. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva20816.html Piece of wood and sand ripples. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva6009.html Dunes under rare stormy sky. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva20813.html Ripples on Mesquite Sand Dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1168.html Mesquite Sand Dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1165.html Eureka Dunes, tallest in the park, dusk. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1153.html Dune field with hikers, Mesquite Dunes. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva5796.html Sand dunes and mesquite bushes, dawn. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32543.html Sensuous forms, Mesquite Sand Dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32557.html Ripples on Mesquite Sand Dunes. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva2180.html Mesquite sand dunes at dawn. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32544.html Depression in sand dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32556.html Mesquite bushes and sand dunes, dawn. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32541.html Hiker on sand dunes. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva5797.html Photographer on dune ridge at sunrise. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32549.html Eureka sand dunes, late afternoon. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva2187.html Mesquite Sand Dunes, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva1167.html Ripples in partly snow-covered sand dunes. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20557.html Rippled dunes and Sangre de Christo mountains in winter. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa20561.html Sand ripples and Sangre de Christo mountains in winter. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0263.html Pattern of snow over dunes. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa0287.html