Solar heating. Colorado World's largest solar heated building located on the North Campus-Community College. Post D 3, 1977 p.47 Largest facility in world using solar heat - Community College of Denver North Campus and Center for the Physically disadvantaged - dedicated. Post D 5, 1977 p.23 Arnold and Maria Valdez develop solar home and complex in San Luis, Colo. RMN Ja 7, 1978 p.2B,1.1.B,14B