ANCHORAGE, Alaska — National Park rangers say they’ve never met a climber on Mount McKinley like the woman from Croatia who refused for six days to walk down and demanded an air evacuation.

Although she wasn’t injured or ill, she was flown off of a camp at the 14,200-foot level last May. When she reached Talkeetna, rangers gave Jadranka Luca-Mrden a rare citation for “interfering with agency function.”