Beaver Kill in Albany
Today if you went Downtown you would be hard pressed to find much of the Beaver Kill or Beaver Creek. Most of it is buried in the Big C Pipe, although they are proposing to daylight part of it in Lincoln Park during the coming years. Probably the best place to see it would be in what is now Washington Park Lake.
Data Source: 1866 Beers Map of Albany from the New York Public Library, georefrenced, traced and overlaid on a contemporary aerial photo and LIDAR hillshade.