Rocky Mountain Christmas Watched by over 65 million on its premiere, John Denver hosts a musical Holiday special with guests to coincide with his first holiday album release. The show takes place and is filmed in Aspen, CO inside a clear bio-dome. Details Casts Videos Galleries Posters Title Rocky Mountain Christmas Release Date 1975-12-10 Runtime 01 Hours 00 Minutes Genres Family TV Movie Music Production Companies Unknown Production Countries United States of America John Denver... Himself... Steve Martin... Himself... Valerie Harper... Herself... Olivia Newton-John... Herself... ABC John Denver's Rocky Mountain Christmas Promo #1 1976 (Trailer) John Denver & Steve Martin (Clip) Original Size (1280x720) Original Size (709x999)