EVS-Islands

Hon Son Cha is also known as Son Tra Island. It is located off of the eastern tip of the Son Tra Peninsula (reputed to be the boundary between North and South Vietnam). This goes back to the 13th century when the Nguyen family (North Vietnam) fought to claim the southern portion of Vietnam from the Kingdom of Champa. The capital of Champa was located right in the area. Nothing left of it today except for some monuments and some people that claim Cham roots. The small island is about 1.49 sq. km. in area. It is located about 1-km off shore. It is covered by dense forest. The highest point on the island is 230-meters. This island is part of the Hai Van-Hon Son Tra Marine Protected Area. The map includes the World Vector Shorelines (WVS). These are what I am intent on improving. As you can readily see, the Enhanced Vector Shorelines (EVS - my shorelines) are far more precise and better reflect the actual ground features. Orthorectified Landsat Enhanced Thematic Mapper (ETM+) Compressed Mosaics are what I use to make my maps. They render ground features at a resolution of 14.5-meters per pixel. According to that resolution the best scale I can hope to resolve to is between 1:125000 and 1:62750. I believe that my maps exceed those limitations often by a factor of 2x ( 1:15600). I need to credit my source materials (the Landsat imagery). For example, the above image is taken from Landsat ETM N-48-15_2000. Hon Son Cha VN EVS Coordinates are available via Comment request.