New Hampshire ? A Massachusetts teenager who spent three nights alone on Mount Washington in April after he sprained an ankle and veered off marked trails has been fined more than $25,000 for the cost of his rescue.

Scott Mason had been praised for utilizing his Eagle Scout skills — sleeping in the crevice of a boulder and jump-starting fires with hand sanitizer gel. But authorities say he wasn’t prepared for the conditions he encountered and shouldn’t have set out on such an ambitious hike.

“Yes, he’d been out there in July when you could step across the brooks. And people have been out there in winter in hard-packed snow. But with these spring conditions, it was soft snow, it was deep snow,” said Fish and Game Maj. Tim Acerno.

Acerno said he believes Mason’s fine is the largest ever sought under a 9-year-old New Hampshire law that allows lost hikers and climbers to be charged for rescue costs. Mason’s rescue was particularly expensive because the helicopters the state typically used were unavailable, and a helicopter from Maine had to be brought in, Acerno said.