MacNeil Island is a small, uninhabited island located in the Gulf of Alaska. It is part of the Alexander Archipelago and is known for its rugged terrain and diverse wildlife. The island is primarily composed of rocky cliffs and dense forests, making it a natural habitat for various species of birds and marine life. The island is named after John MacNeil, a Scottish explorer who contributed to the mapping of the region. MacNeil Island is often visited by researchers and wildlife enthusiasts who are interested in studying its unique ecosystems and the surrounding waters, which are rich in marine biodiversity.