ATOW1996 is one of the northernmost documented points of land on Earth. It is a small island about 10 metres (33 feet) long and one metre high, located several miles north of Cape Morris Jesup in northern Greenland at 83°40′34.8″N 30°38′38.6″W. It was discovered by and named after the (American) Top of the World Expedition of 1996 led by John Jancik and Ken Zerbst.
An island even farther north—at 83°41′06″N 30°45′36″W—was noted in a Twin Otter flyover by the 2001 Return to the Top of the World Expedition (RTOW2001). This expedition, led by Theresa Baker, John Jancik and Ken Zerbst, also confirmed the continuing existence of the ATOW1996 Island.
Another island, called 83-42, was found at 83°42′05.2″N 30°38′49.4″W. It is also a tiny island, measuring about 35 by 15 metres (115 by 49 feet) with a height of 4 metres (13 feet). Whether that islet is permanent has not yet been confirmed.
The Oodaaq Island, at 83°40′N 30°40′W, is another semi-permanent gravel bank claimed as northernmost.
All of these small islands are not very permanent. Waves and ice shift gravel banks around in these shallow waters. The northernmost permanent land, according to established science, is Kaffeklubben Island, at 83°40′N 29°50′W.