Another National Park Arch Collapses, This One at Apostle Islands National Lakeshore
Hole-in-the-Wall arch, long a prominent landmark on the northeast corner of Oak Island, collapsed sometime during the winter of 2009-2010, according to park officials.
A close examination of the “bridge” from below revealed that it was an isolated rock precariously seated between two joint cracks. The arch's collapse "serves as a dramatic reminder of how the forces of nature constantly shape the Apostle Islands," the park noted in a release.
Along that line of thinking, officials strongly suggest that "visitors should use caution when hiking or boating near eroding shorelines."