![](https://i0.wp.com/envhistnow.com/wp-content/uploads/2018/10/Figure-3-Carnegie-Library.jpg?fit=523%2C640&ssl=1)
Two girls and an apple tree in Niwot, Colorado, 1909. Photo credit: Boulder Historical Society/Museum of Boulder, on permanent loan to the Carnegie Library for Local History.
Orchard at Colorado Chautauqua in Boulder, circa 1907. Photo credit: Boulder Historical Society/Museum of Boulder, on permanent loan to the Carnegie Library for Local History.