Concave 20

Concave 20 / UpperSouthClave XXIV was a convention held February 26–28, 1999, at the Park Mammoth Resort in Park City, KY.

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Concave 19	Concave	Concave 21
UpperSouthClave XXIII	UpperSouthClave	UpperSouthClave XXV
	1999

This is a convention page. Please extend it by adding information about the convention, including dates, GoHs, convention chairman, locale, 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.