The Charlotte Harbor and Northern Railway is a historic railroad line that at its greatest extent serviced Gasparilla Island in Charlotte Harbor and a major shipping port that once operated there. The railroad's principal purpose was to transport phosphate mined along the Peace River and in the Bone Valley region of Central Florida to the port to be shipped. It also brought passengers to the island community of Boca Grande on Gasparilla Island, and is largely responsible for making Boca Grande the popular tourist destination it is today. Part of the line remains in service today between Mulberry and Arcadia, which is now owned and operated by CSX Transportation. Today, it makes up CSX's Achan Subdivision and part of their Brewster Subdivision.