<Li> Shawna Landon (Little House Years / episode 9.15; both uncredited) </Li> <P> Of the 204 episodes, Michael Landon directed the largest number at 87; producer William F. Claxton handled the majority of the remaining shows at 68, while co-star Victor French helmed 18 . Maury Dexter (who was often an assistant director) and Leo Penn directed the remaining episodes at 21 and 3 episodes respectively . </P> <P> Interior shots were filmed at Paramount studios in Los Angeles, while exteriors were largely filmed at the nearby Big Sky Ranch in Simi Valley, where the town of Walnut Grove had been constructed . Many other filming locations were also used during the course of the series including Old Tucson Studios and various locations in Sonora, California . Many of the exterior shots of Walnut Grove and the other Minnesota towns shown in the series have noticeable mountain terrain in the background of the scenes . In actuality the southern Minnesota landscape, where the show is supposed to take place, there are no tall mountains . </P> <P> The series theme song was titled The Little House and was written and conducted by David Rose . The ending theme music, also written by Rose, originally appeared as a piece of incidental music in a later - season episode of Michael Landon's previous long - running series, Bonanza . </P>

Where the little house on the prairie was filmed
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