The small stream that feeds Buttermilk Falls is known as Hires Run. during the recent heavy rains of February 2018, it has delivered lots of water to the falls.
Recent heavy rains, creating flood conditions, means that there is a large volume of water going over the spillway of Cummings Dam at Blue Spruce Park. Since the dam's construction in 1912 lots of water has flowed ovr the spillway.
