- Tall hackberry trees with an understory of abundant poison ivy 12 feet tall dominate most of the island. Great solomon's seal reaches 7-9 feet in height and a great variety of ferns, wildflowers, mushrooms and other plant life abound. The island is composed of glacial fill over a limestone shelf. West Sister Island is noted for having the largest heron / egret rookery in the Great Lakes.
Public use is restricted to research and education.
West Sister Island is located in the southwestern basin of Lake Erie.
Ask a local about West Sister Island National Wildlife RefugeLocals have answered 67 questions about Chicago.
Ask Chicago Locals about West Sister Island National Wildlife Refuge