Rocky Mountain National Park. Looking down on the Colorado River valley
                       
Johnston Canyon Lower Falls, Banff National Park, Canada
                       
Johnston Canyon, Banff National Park, Canada
                       
Athabasca Falls in Jasper National Park, Alberta, Canada
                       
Athabasca Falls in Jasper National Park, Alberta, Canada
                       
Grand Teton National Park , Wyoming
                       
Grand Teton National Park , Wyoming
                       
Emerald Lake in Yoho National Park, Canada.
                       
Emerald Lake in Yoho National Park, Canada.
                       
Emerald Lake in Yoho National Park, Canada and the remains of an avalanche.
                       
A lone Joshua Tree in the Nevada desert near Area 51.
                       
The end of a long hike. Rocky Mountain National Park, Colorado, USA
                       
Aging sentinals. These dead trees show the prevailing wind direction. Spotted in Rocky Mountain National Park, USA
                       
Dream Lake, Rocky Mountain National Park, Colorado, USA.
                       
This dead tree stump was spotted in Colorado's Rocky Mountain National Park
                       
Grand Teton National Park , Wyoming
                       
Yellowstone National Park: overflow from warm springs showing various colours due to algal activity and differing levels of acidity.
                       
Devils Tower National Monument, South Dakota, USA.
                       
Badlands, South Dakota, caught in the setting sun.
                       
A tenacious tree on the shores of Ruby Beach, Washington State, USA
                       
Alpine meadowland, Montana, USA.
                       
St Mary Lake, Glacier National Park, USA.
                       
Saint Mary Falls, Glacier National Park, Montana.
                       
St Mary Lake, Glacier National Park, USA