The Oregon Trail Emigrants came down Windlass Hill and into Ash Hollow. Ash Hollow would have offered fresh water from the spring, wood, and a place to camp near the Platte River. Near Ash Hollow, there was a large battle between Indians and the U.S. Cavalry.
Unfortunately, the visitors center was closed both times that I tried to visit! I was able to walk through, and read the headstones in Ash Hollow Cemetery.