Over the course of the next four hundred years, many of the native mammals of this current area of downtown Washington, D. C. were removed by bounty hunting or simply hunting to local extinction. The stream shown in this picture was filled in during the 19th and 20th century but still flows in pipes under the "mall" in the center of the city. The damp wooded wetland of this area is still remembered in the title of the area as being "foggy bottom". With poor drainage, no sanitation to speak of, it is little wonder that the capital residences fled to summer homes away from the city to avoid ill health in the 19th century. Smith and crew would not recognize the tidal area of the city, with its formal landscapes and magnificent roman and creek inspired architecture. And in Rock Creek Park, beaver battle to once again still the running waters and wolves return to the Potomac green corridor of the C and 0 Canal.