Pinnacles rise from the surf in this scene from Alaska's Chiswell Islands.
Backwash from a wave that has impacted the seacliff returns to meet an incoming wave, resulting in the release of tremendous energy. Water displaced upward can reach heights of 150 feet.
Dramatic wave forms are formed when backwash from a wave meets an incoming wave.
A lone juniper tree on a sandstone ridge, Colorado
Rural road in Appalachia. The hoarfrost covered trees are being illuminated by early morning sunlight while the foreground remains in shade.
Oak trees stand sentinel in an old family cemetery in Appalachia as falling snow blankets the countryside.
A mountainside shrouded in fog forms the background for this winter sycamore tree illuminated by early morning sunlight.
The gnarled trunk of this ancient tree supports life though the tree has lost its top.
Bare oaks under stormy skies in this winter scene from the Appalachian Mountains.
Image nr xf b&w 121405-549 (062912)
Trees covered with hoarfrost in the Appalchian Mountains of Tennessee.
A coastal wetland along the South Carolina coast.
Scene from White Sands National Monument, New Mexico.
Dunes at White Sands National Monument, New Mexico.
Wind sculpted dunes of Great Sand Dunes National Park, Colorado. Change is nearly constant as wind lifts sand from one area and deposits it in another.
Sand dunes abstract
Receding waters of Cook Inlet expose mud flats, both reflecting glare from the setting sun,
Winter scene from the Colin Range of the Canadian Rockies.
First snows of winter begin to cover peaks in the Colin Range of the Canadian Rockies in Alberta, Canada.
Snow covered peaks and lowland fog are captured in this Canadian Rockies scene.
Early winter scene from the Canadian Rockies.
A view of a portion of the Canadian Rockies as sunlight penetrates winter flurries.
A scene from the Rocky Mountains.
Another photo from the Canadian Rocky Mountains, this one from the Colin Range in Alberta.
Quaking aspen trees in early morning light, Alberta, Canada/
Remains of a juniper tree create a break in the monotony of snow covered high desert vegetation.
This juniper tree stands on the tree line, beyond it there is open high desert, above it, behind the photographer, juniper forest.
A stand of young sycamore trees under foggy skies.
A once magnificent red cedar tree. Its wood is decay resistant and dead trees such as this may stand for decades.