(Undated)  --  The D-N-R is launching its informational fall color Website today.  Spokeswoman Pat Arndt says all the information can be found at www.dnr.state.mn.us.  It shows a map of the state and the colors of the map will change as the fall colors start to march across Minnesota.  The site also reports the color changes in prairies grasses and flowers in the southwestern part of the state.  Arndt says park managers will be posting fall color information on each individual park and provide recommended viewing places within their park.