This is an excellent map for travel between major cities, but if you want detail of particular cities: Santo Domingo outside of the touristy Zona Coloniál or say, Higüey or San Pedro de Macorís, forget it. It is a detailed account of the Dominican highway system, but not the map for in-town travel. To its credit, it does have limited street maps of the tourist central cities of Santo Domingo & Puerto Plata, but not of the business / industrial centers of Santiago de los 30 Caballeros, Higüey, La Romana, San Pedro de Macorís, etc.