Maps of Singapore Waters, past and present
These maps, indicating the extent of marine ecosystems and reclamation in Singapore Waters in the 1950's and 2002, were published by the NSS Marine Conservation Group in their 2003 book "Singapore Waters".
The maps here have been featured by permission of the Group. A slightly larger 640 x 465 photo of the marine ecosystem maps and other marine images can be downloaded from the Singapore Waters gallery.
If you need anything better, you can purchase the book which is retailing at $51.90 (see The Botanic Gardens Shop (Nature's Niche) or Select Books.
See also: Vegetation maps of Singapore, circa 1819 and c. 1990, from the Guide to the Mangroves of Singapore, 1999.