Petrified Forest of Theodore Roosevelt National Park

February 24, 2014

Petrified Wood 4367 (2)

Photographer: George Seielstad
Summary Authors: George Seielstad

Shown above is an example of petrified wood found in Theodore Roosevelt National Park (South Unit), North Dakota. What is today a dry, sparsely forested region of so-called badlands once had an abundance of giant sequoia trees (Metasequoia glyptostroboides). In order for their petrifaction to have occurred, fallen trees must have been buried rapidly, most likely by a flooding river. Between that ancient event and now, these trees spent several thousand years buried beneath hundreds of feet of glacial ice. One of the attractions of the South Unit of Theodore Roosevelt National Park is that it’s never crowded. On the day this photo was snapped, September 6, 2013, I didn’t see a single person the entire afternoon.

Photo details: Nikon D300 camera; Nikkormat 28-70 mm lens; at 34 mm (51 mm equivalent); f/20; 0.01 sec. exposure; ISO 400; handheld; Software: Adobe Photoshop Elements 9.0 Windows.