Investigators from the National Transportation Safety Board are beginning to investigate Tuesday's crash that killed Sparky Imeson of Helena.
The 64-year-old Imeson took off alone from the Bozeman airport. Two friends say he had intended to document the site of a 2007 crash in the Elkhorn Mountains that left him with a compression fracture to his back, broken ribs, a broken toe and cuts on his head.
Searchers on Thursday found the wreckage of his Cessna 180.