Blue region depicts flooding of the Allen Creek floodplain to different topographic elevations. The region lies on the west side of downtown Ann Arbor, running from the Huron River, south to the University of Michigan golf course and west to the edge of town. These models make sense only when viewed in Google Earth with the terrain switch "on". They look best when also loaded in Google Earth with buildings from the Ann Arbor collection; two general files are enclosed here; there are others, with textured buildings to fill in the gaps in the DDA and The University of Michigan, in the "Ann Arbor, MI: Collections" file. All models created by Sandra Lach Arlinghaus.