Looks like it will be built on the ground, not on the mountain.
http://wbztv.com/wireapnewsnh/Ground...2.1759765.html
On Thursday, organizers are scheduled to break ground for the first part, a new lakeside pavilion and stainless steel "profilers" that will allow viewers to line up the sculptures' irregular edges and "see" the outline of the Old Man on the cliff where it once appeared.