The National Archives has been known to cough up some pretty odd material. One document, written at the tail end of the Eisenhower administration, might trump them all. In a foreign service dispatch dated December 1959—written on State Department letterhead from the U.S. embassy in Kathmandu, Nepal—an operative discussed the yeti as if it were a real-life creature and mapped out ways to hunt it down and catch it. Despite the U.S. government’s belief in the creature’s existence, to this day, the yeti has yet to be captured, dead or alive—or even on camera. Take a closer look at the document below.