A lone figure sits on the crest of a dune in White Sands National Monument, New Mexico.
A sunrise view of Mount Moran in Grand Tetons National Park, Wyoming taken from Oxbow Bend.
An Atlantic puffin (Fratercula arctica) with a beak full of fish as seen on the island of Lunga in the Treshnish Isles off Scotland's west coast.
Sequoia and redwood trees in Sequoia National Park, California.
Sunset seen from an overlook in Colorado National Monument near Grand Junction.
An infra-red shot of a grojup of micro-islands off the coast of Vanua Levu, Fiji.
A Gulf Fritillary butterfly feeds on a lantana blossom.
Sunset as seen from the shoreline beneath Bass Harbor Head Light in Maine.
Receding foothills of Mauna Loa on the Big Island of Hawaii.
An infra-red panorama of Yosemite Valley taken from Tunnel View.
A Widow Skimmer dragonfly seen near Austin, Texas.
The harbour of Tobermory on the Isle of Mull off Scotland's west coast.
Hamilton Pool is a popular and spectacular swimming hole in western Travis County near Austin. The location is dominated by a huge rock overhang formed when the previous cavern roof partly collapsed.
Frost-covered trees at Lanark Loch, Scotland.
A female Black Chinned Hummingbird (Archilochus alexandri) in flight. The photo was taken in South Llano River State Park near Junction, Texas.
Trees reflected on the surface of Taggart Lake in Grand Tetons National Park, Wyoming.
An infra-red panorama taken at Taggart Lake in Grand Tetons National Park, Wyoming, USA.
A lone photographer sets up a shot at Shafer Canyon in Canyonlands National Park, Utah.
Frozen fir trees in the mist as seen on a mountain pass in Utah during the winter of 2010.
A Sleepy Orange butterfly feeding on a thistle blossom.
Some intertwined cypress roots strewn with fallen needles seen on the riverbank at Pedernales Falls State Park in Texas.
A manta ray flies through the water at night while illuminated by the beams of dive lights.
A view of the rolling hills of Washington state's Palouse region taken from the summit of Steptoe Butte near Colfax.