Mississippi River High: “Almost Heaven: The Songs of John Denver,” at the Clinton Area Showboat Theatre through August 10

The Clinton Area Showboat Theatre closes out its 2025 season with a gorgeously sung tribute in director Amy Fritsche’s Almost Heaven: The Songs of John Denver. What this revue by Harold Thau (who’s credited for its “original concept”) is lacking in heart is more than made up by the live music played by the onstage actors, all of whom make Denver’s music ring.