file-324f863a-3ac8-4f9b-99cc-1a569c53d2db-10783-000009e27a6d6af7 May 19, 2019 1000 × 1333 file-324f863a-3ac8-4f9b-99cc-1a569c53d2db-10783-000009e27a6d6af7 Hiking up one of the Great Sand Dunes.