As recorded at Crow Wing Lake Campground
  ~ courtesy of Don and Mayva Kottke ~

2014 April 25 2013 May 10 2012 March 19  2011 April 15 2010 March 23 2009 April 19 2008 April 24 2007 April 12 2006 April 7 2005 April 8 2004 April 7 2003 April 13 2002 April 15 2001 April 23 2000 March 24 1999 April 3 1998 April 5 1997 April 21 1996 April 26 1995 April 20 1994 April 14 1993 April 18 1992 April 4 1991 April 7 1990 April 18 1989 April 22 1988 April 12 1987 March 29 1986 April 13 1985 April 8 1984 April 11 1983 April 15 1982 April 24 1981 April 1 1980 April 19 1979 April 29 1978 April 20 1977 April 10 1976 April 9 1975 April 29 1974 April 22 1973 April 7 1972 April 26