Singing sand avalanche, Great Sand Dunes National Park, Colorado.
Have you ever heard sand sing? Listen to 15 seconds of this bizarre phenomenon! Just as our own voices are made by air moving through vibrating vocal chords, a humming sound is made at Great Sand Dunes as air is pushed through millions of tumbling sand grains during an avalanche. Avalanches occur naturally during storms, but can also be created by people pushing sand down a dune face. In the 1940s, one of Bing Crosby’s musical hits was “The Singing Sands of Alamosa” - a love song based on the sounds of Great Sand Dunes. This humming sound continues to inspire people today!
This picture of Great Sand Dunes National Park & Preserve in Colorado is a perfect combination of stone, sand, snow and light. The Sangre de Cristo (“Blood of Christ”) Mountains were named by early explorers for the crimson light that often appears on them at sunrise or sunset. The red color is especially vivid when the mountains and dunes are covered with snow. Photo by Patrick Myers, National Park Service.
Spring green joins nature’s vibrant palette at Great Sand Dunes National Park and Preserve in Colorado. Late spring is one of the more visually stunning times of the year at the park, when aspen and cottonwoods show bright new leaves, Medano Creek is flowing and the mountains are still snowcapped. The unexpected combination of these diverse elements brings a response of awe, along with a desire to share the experience with others. Photo by Patrick Myers, National Park Service.