Arch evolution can occur over thousands of years, but La Dame Blanche (The White Lady) in France consisted of a crumbly clay-like rock and evolved from youth to maturity to collapse in the course of just a few years.<\/p>\n

The photo below taken by Albert Zwinkels<\/a> in 2009 shows a small, young opening.<\/p>\n

<\/a>
\nThe photo below by NABS member Guilain Debossens taken in June 2014 shows a mature span of 20 feet.<\/p>\n

<\/a>
\nThe photo below by Raphael Rodon was taken in April 2015, showing that the arch had collapsed.<\/p>\n

<\/a>
\nLa Dame Blanche (NABSQNO 31T-663186-4933509) was located in the vicinity of Dieulefit village in the Dr\u00f4me department of France, about 100 miles south of Lyon and 120 miles north of Marseille.<\/p>\n","protected":false},"excerpt":{"rendered":"

Arch evolution can occur over thousands of years, but La Dame Blanche (The White Lady) in France consisted of a crumbly clay-like rock and evolved from youth to maturity to collapse in the course of just a few years. The photo below taken by Albert Zwinkels in 2009 shows a small, young opening. The photo … Continue reading Rapid Evolution of an Arch<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":100,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,19],"tags":[],"_links":{"self":[{"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/posts\/98"}],"collection":[{"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/comments?post=98"}],"version-history":[{"count":7,"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/posts\/98\/revisions"}],"predecessor-version":[{"id":149,"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/posts\/98\/revisions\/149"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/media\/100"}],"wp:attachment":[{"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/media?parent=98"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/categories?post=98"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.naturalarches.org\/blog\/wp-json\/wp\/v2\/tags?post=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}