El Malpais National Monument 3,600-6,000 year old lava! For geology nerds, pāhoehoe and ‘a’ā are both pictured here. These sandstone bluffs are 200 million years old. Here’s where I first met a Sage thrasher. La Ventana Arch Share: Email a link to a friend (Opens in new window) Email More Share on WhatsApp (Opens in new window) WhatsApp Tweet Share on Reddit (Opens in new window) Reddit Share on TumblrLike Loading... Related