In the dunes?
In 1951, Reggie Robertson, identified as president of the Elberta Ski Club and founder of the Elberta Mountain Winter Sports Area, spoke to the Frankfort Rotary Club about the history of skiing and its growing popularity in America and told the story of the building of the Elberta ski area. This from The Benzie County Patriot, February 15, 1951.
On Fri., Jan. 25, 1952, The Ludington Daily News winter sports report listed Elberta as having 6″ of new snow over a 2″ base with excellent ski conditions.

the jump was in the woods behind and south of T-Mac’s small machine shop. There was a set of steps from the road just past the last house on the west side of Elberta heading toward the dunes area. At the top of the steps climb you would look to the left and see the hill area.