The Vanishing Prairie was a 1954 documentary film by Walt Disney, which won the Academy Award for Documentary Feature in 1954.  The theme music was given a set of lyrics by Hazel "Gil" George. It rechristened as "Pioneer's Prayer" in Westward Ho, the Wagons!, a western film about pioneers on the Oregon Trail. It released on video in 1985 and then 1993.
Gallery of Animals