WHITEFISH, Mont. (AP) — A study commissioned by the National Park Service has found that Glacier National Park in its centennial year in 2010 attracted 2.2 million visitors who spent nearly $110 million in surrounding communities. About half of the money was spent on lodging and meals, 29 percent in retail, 10 percent on entertainment, 7 percent on gas and local transportation, and 2 percent on groceries.