(Rick Egan | The Salt Lake Tribune) The border of the Range Valley Ranch on the Tavaputs Plateau, on Wednesday, Aug. 14, 2024. Mike Siaperas patented "roller-felling," his method that can remove 100 acres of forest in a day." A recent audit found that his nonprofit had to return money to the Utah Legislature that had been appropriated for roller felling because it could not find land for a project.