 It features bluffs approximately tall, patches of old-growth forest, rare, endangered and threatened plant species, a "world-class" steelhead fishery, a savanna ecosystem, wetlands and several archaeological sites.The Pennsylvania Department of Conservation and Natural Resources in cooperation with the Western Pennsylvania Conservancy conducted a biological survey in the summer of 2004 at Erie Bluffs State Park.Their goal was to survey the forests, streams, and beaches of the park for every species of wild bird, fish, reptile, mammal, amphibian, plant, and insect that they could find.