Hotels-live.com/pages/sejours-pas-chers - Photo @ladzinski / Home to the tallest sand dunes in North America, #greatsanddunesnationalpark sits prominently in the north east side of the San Luis valley at the foot of the Sangre De Cristo Mountains. Geologist estimate that the dunes began forming some 440,000 years ago and are still growing today. Hotels-live.com via https://www.instagram.com/p/BC-k2L-oMdh/

Hotels-live.com/pages/sejours-pas-chers - Photo @ladzinski / Home to the tallest sand dunes in North America, #greatsanddunesnationalpark sits prominently in the north east side of the San Luis valley at the foot of the Sangre De Cristo Mountains. Geologist estimate that the dunes began forming some 440,000 years ago and are still growing today. Hotels-live.com via https://www.instagram.com/p/BC-k2L-oMdh/ via #Voyages https://www.facebook.com/106354736155125/photos/a.335372966586633.1073741997.106354736155125/337894136334516/?type=3