By 2100 sea level will have: 1) inundated much of coastal and interior Miami-Dade County, 2) seriously degraded freshwater availability county wide, and 3) changed the climate from a terrestrial to an oceanic process dominated system. Projected sea level rise will also result in ecological problems as anthropogenic altered areas are inundated. The IPCC (2007) has made global sea level rise projections to provide guidance for the next 100yrs but no detailed local information. In order to better understand the meaning of various sea level scenarios, LIDAR data collected by the FIU/IHRC (2004) was used to map the physical impact of rising sea level on the coastal zone of Miami-Dade County. Because the data set overlaps the eastern edge of the historical Everglades, it is also possible to examine the effect there and to understand how the transverse glades will facilitate a change from a freshwater dominated system to a marine one.