in Picture of the Day Stuðlagil Canyon With Majestic Basalt Columns View this post on Instagram A post shared by Iceland Wonder (@iceland.wonder) Photo by @glacionaut on Instagram Tall basalt columns are what form the sides of Stuðlagil canyon, towering over the turquoise glacial river below. One of the most stunning natural sights in East Iceland. CanyonsEast IcelandPicture of the dayStuðlagil