© Geoffrey R Cullen 2019
A hiker rests on the scree slopes of Grey's Peak, Colorado, USA and snaps a photograph of the Rocky Mountain terrain.
Turning yellow, leaves of the alpine willow shrubs along the headwaters of Pine Creek, signal cooler weather conditions in the high country near Aspen, Colorado, USA. A ridge line leading to Cathedral Peak, makes a dramatic skyline beneath partly cloudy skies.
A gloomy mood prevails in the Yosemite Valley of California, USA as storm clouds gather behind the iconic Half Dome. The Yosemite Valley was carved from granite rocks by glacial action that left these dramatic landscapes.