Jurgen Heiser, 37, was last seen in Circle, Alaska, on September 27, 2003, as he prepared for a solo canoe trip intended to end at Twelve Mile Bluff. He left with a dark blue sleeping bag, a green backpack and clothing described as a red plaid shirt, black lace-up leather boots, black leather pants with lace-up sides, blue jeans and a gray sweater.

His canoe was later found near a sandbar about 50 miles downriver from Circle, but there was no sign of Heiser himself and no visible indication of a struggle. The distance of the canoe from his planned destination and the lack of further trace have left the circumstances of his disappearance unresolved.

Did anyone travel the Yukon River between Circle and Twelve Mile Bluff around late September 2003 and notice anything that could help explain what happened to Jurgen?