Thursday, June 4, 2026, 1:00 PM - 3:00 PM: Join the Burroughs Audubon Nature Club and Matthew Nusstein, Letchworth Park Naturalist, to enjoy old growth woods along the Moraine Loop Trail. The Moraine loop features its namesake, a section of the Valley Heads moraine, which is the geologic feature that altered the path of the Genesee River some 10,000+ years ago. There are also several swampy bogs, one of the parks tallest white pines and several other species of old growth trees such as cucumber, beech, tulip, maples and more!