 One of these McCall skiers was Boise agribusiness tycoon J.R. Simplot (1909–2008), who had a vacation home on Payette Lake.Financed by Simplot, the Brundage Mountain project took shape under the guidance of longtime McCall resident, Warren Brown (1912–2000) and ski legend Corey Engen (1916–2006).A former Olympian and instructor at the Little Ski Hill, Engen laid out the trails on the mountain during the summer of 1961.