YosemiteisoneofthegemsoftheUnitedStatesNationalParkssystem.NarratedbyexecutiveproducerRobertRedford,this1988documentaryairedontheEmmyaward-winningPBSseriesTheAmericanExperience.ThisaffectionatehistoryofYosemite,whichwas"discovered"in1851asU.S.troopshunteddownNativeAmericans,alsoraisesquestionsaboutthefutureofthepark--Am...