American bison grazing in the rain in the Hayden valley, Yellowstone National Park.

Bison silhouette directly in front of the sunset, taken in the Hayden valley, Yellowstone National Park, USA.

A wideangle shot of a bull moose at Schwabacher's landing in Grand Teton National Park.

Moose wading through the river at Schwabacher's landing in Grand Teton National Park, with the mountains reflected in the water.

Backlit juvenile osprey in flight in Yellowstone National Park.

A pair of bison resting in front of some thermals near Old Faithful in Yellowstone National Park, USA.

Panorama of dusk at oxbow bend in Grand Teton National Park.

Two curious pronghorn antelope (Antilocapra americana) doe in the Lamar valley, Yellowstone National Park. Pronghorn are not actually true antelopes, but display similarities due to convergent evolution.

Sunrise over oxbow bend with some grebes floating in the foreground. Grand Teton National Park, USA

An osprey taking off in flight in Yellowstone National Park, USA.

Bison silhouette at sunset in the Hayden Valley at Yellowstone National Park.

Mother grizzly bear with two mischievous cubs, peeping their heads out over the sage brush. Taken in the Lamar valley, Yellowstone National Park.

Startrails on a full moon night at the Mormon barns. 30 minute exposure

The sun shines through a standalone tree at last light in Grand Teton National Park. 

A bison (Bison bison) closeup of eye details, taken against sunset side-lighting, low key. Taken in Yellowstone National Park, Wyoming, USA.

Bison portrait in black and white

Sunset over the mormon barns in Grand Teton National Park.