Fort Drum was a town in Okeechobee County, Florida, United States, located on US 441, between Yeehaw Junction and Okeechobee. A service plaza on Florida's Turnpike is named after the town. The Fort Drum Wildlife Management Area consists of nearly 21,000 acres in southwestern Indian River County and is named for its proximity to the town and is known as the birthplace of the St. John's River. Fort Drum is the only known locale for crystal bearing fossil shells.