Description: This is a detailed map of the city Hobe Sound in Martin County, Florida. Section Township Range (STR) is shown. This map shows state roads, US highways, railroads, airway beacon, a hotel, a powerplant, water tank, cemetery, farm units and dwellings other than farms. Key to Florida Highway maps. Source: , Florida State Road Department (, FL: , 1936) Map Credit: Courtesy the private collection of Roy Winkelman.