<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>
where did little house on the prairie film
Paramount studios in Los Angeles Big Sky Ranch in Simi Valley