Great Sand Dunes National Park. Fisheye image of footprints on the sand dunes of Great Sand Dunes National Park,Colorado,USA,at sunset. This national park contains the tallest sand dunes in North America,reaching heights of around 230 metres from the floor of the San Luis Valley and covering about 19,000 acres. It is thought that they started forming around 440,000 years ago | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Szoenyi, Michael |
Bildgröße: | 5173 px × 3449 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |