NOAA has aerial images from the storm area online here: http://ngs.woc.noaa.gov/katrina/KATRINA0000.HTM Note that these images have not been rotated to north, so one might want to compare these images side-by-side with another map to identify specific landmarks or locations. Both Google Maps and MSN Virtual Earth offer "before" aerial or satellite imagery for comparison: http://virtualearth.msn.com/ http://maps.google.com/