The Old Man of the Lake is a 30-foot tall Hemlock stump that bobs and floats vertically in Crater Lake (Oregon), and has since at least 1896. Scientists have studied the stump for over 100 years, chalking it's longevity and oddity up to Crater Lake's ice cold, clear, clean water. During one month in 1938, it is noted, the Old Man traveled at least 62.1 miles with the ebb and flow of the lake.Learn more here, I did.