Ten Mile River Scout Camps (TMR) is a - roughly the size of Manhattan - camp near Narrowsburg, New York, has four miles of frontage on the Delaware River, and is owned and operated by the Greater New York Councils of the Boy Scouts of America (BSA) since 1927. It is the principal Boy Scout camp serving New York City. In recent years, TMR is also now increasingly used by other councils in New York state. Over the years, prominent Americans have been instrumental in its history, including Franklin D. Roosevelt and New York mayor William O'Dwyer.