A convention held in Denver, CO from 1977 to 1980.

Convention Date GoHs
Penulticon '77 November 18-20, 1977 Leigh Brackett, Fred Pohl, Bruce Pelz
Penulticon '79 May 25-28, 1979 C. J. Cherryh, Samuel R. Delany, Don Thompson, Maggie Thompson
Penulticon 3 February 22-24, 1980 Vonda McIntyre, Hal Clement, Marty Massoglia

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.