The picturesque Opera House has a 344 - seat capacity and a state - of - the - art sound system ( installed in 1999 ) .
The Sun Valley Opera House was built in 1937 in Sun Valley , Idaho , as a movie theater .
The picturesque Sun Valley   has a 344 - seat capacity and a state - of - the - art sound system ( installed in 1999 ) .
The Sun Valley Opera House was built in 1937 in Sun Valley , Idaho , as a movie theater .