Earthcon was a convention held in Cleveland, OH from 1981 to 1984. At least initially, it seems to have been a Gen-Sime or Tarot-oriented convention.

Convention Dates GoHs
Earthcon I September 18-20, 1981 Jacqueline Lichtenberg, Mark Hyde
Earthcon II November 12-14, 1982 Jacqueline Lichtenberg, Marion Zimmer Bradley, Jean Lorrah
Earthcon 3 October 7-10, 1983 Jacqueline Lichtenberg
Earthcon 4 September 7-9, 1984 Poul Anderson, Steve Jackson, Rebecca M. Meluch

This is a convention page. Please extend it by adding information about the convention, including dates, GoHs, convention chairman, location, sponsoring organization, external links to convention pages, awards given, the program, notable events, anecdotes, pictures, scans of publications, pictures of T-shirts, con reports, etc.