Winter morning, Great Sand Dunes National Park

Winter morning, Great Sand Dunes National Park, CO

Backcountry dunes in winter, Great Sand Dunes National Park, CO

Backcountry dune detail, Great Sand Dunes National Park, Winter

Sunset light on Sangre de Cristo Mountains, Great Sand Dunes National Park, CO

Sunrise light on Sangre de Cristo Mountains, Great Sand Dunes National Park, CO

Winter sunrise light on Sangre de Cristo Mountains, Great Sand Dunes National Park, CO

Winter cloud formations over Sangre de Cristo Mountains, Great Sand Dunes National Park, CO

Winter cloud formations over Sangre de Cristo Mountains, Great Sand Dunes National Park, CO

Summer rainstorm from High Dune, Great Sand Dunes National Park, CO

Summer rainstorm from High Dune, Great Sand Dunes National Park, CO

Late afternoon summer thunderstorm, Great Sand Dunes National Park, CO

Late afternoon summer thunderstorm, Great Sand Dunes National Park, CO

Late afternoon summer thunderstorm, Great Sand Dunes National Park, CO

Evening summer storm light, Great Sand Dunes National Park, CO

Evening summer thunderstorm, Great Sand Dunes National Park, CO

Medano Creek, Great Sand Dunes National Park, CO

Aspen Groves, Sangre de Cristo Mountains from Great Sand Dunes National Park, CO

Aspen Groves, Sangre de Cristo Mountains from Great Sand Dunes National Park, CO