This map of Saint Vincent (but not the Grenadines) was published by the United Kingdom’s Directorate of Overseas Surveys in 1967.
Relief is indicated through shading, and contours every 200 feet.
1:50 000 and 1:25 000 maps of St. Vincent and the Grenadines, and 1:10 000 maps of the Grenadines, are available from TROPICARTA (requires Chomikuj account).