This website provides a series of maps that estimate the areas of exposed land in the Indo-Australian region during periods of 17,000, 150,000, and 250,000 years before present (YBP). The ancient shorelines are based on present day depth contours of 10, 20, 30, 40, 50, 75, 100, and 120 m. On the maps depicting shorelines at 75, 100, and 120 m below present levels (BPL), the major Pleistocene river systems of the Sunda and Sahul shelves are depicted. View 2000 Maps View 2006 Maps Availability of Maps and Copyrights Copyrights on the maps presented here belong to The Field Museum of Natural History (© 2000 Field Museum of Natural History, Chicago, Illinois USA and © 2006 Field Museum of Natural History, Chicago, Illinois USA). Black and white and color versions of the maps that appear here may be downloaded for non-commercial scholarly, scientific or educational purposes. Any commercial use of the illustrations is expressly prohibited without the written permission of the first author. The maps may be downloaded, copied, modified, and re-published for non-commercial purposes as long as The Field Museum of Natural History is acknowledged and the original publication source is cited. The two publications are as follows: Voris, H. K. 2000. Maps of Pleistocene Sea Levels in South East Asia: Shorelines, River Systems, Time Durations. Journal of Biogeography 27:1153-1167. Sathiamurthy, E. and Voris, H. K. 2006. Maps of Holocene Sea Level Transgression and Submerged Lakes on the Sunda Shelf. The Natural History Journal of Chulalongkorn University. Supplement 2:1-43.