Fallen log - Grand Tetons National Park, Wyoming
Aspen on a mountain side - Rocky Mountains National Park, Colorado
Ripples in the sand - Great Sand Dunes National Park, Colorado
Frost covered dunes - Great Sand Dunes National Park, Colorado
Small waterfall over a canyon wall - Zion National Park, Utah
A close-knit group of white aspen curving upward as one - Maroon Bells, Colorado
Bright yellow "mountain golden pea" flowers, or "Thermopsis montana" growing near a mountain lake - Rocky Mountain National Park, Colorado
Indian Paintbrush - Glacier National Park, Montana
Mossy stream - Smoky Mountains National Park, Tennessee
Rocky ridge - Rocky Mountain National Park, Colorado
"The Wall" - Bryce Canyon National Park, Utah
The Virgin River - Zion National Park, Utah
Tracks in the sand - Great Sand Dunes National Park, Colorado