Blue Hole (Big Pine Key)
The Blue Hole is an attraction on the island of Big Pine Key in the Florida Keys. It is an abandoned rock quarry that was used for nearby road fills and Henry Flagler's Overseas Railroad. The water it contains is mostly fresh and is used by various wildlife in the area, such as birds, snakes, alligators, key deer and green iguanas. It is part of the National Key Deer Refuge.
Blue Island, Illinois
Blue Island is from O'Hare International Airport and from Midway International Airport. It is located a half mile west of Interstate 57, one and a half miles east of the Tri-State Tollway, and is bisected by Western Avenue, which in Blue Island is part of the historic Dixie Highway that in its heyday connected Chicago with Miami, Florida.