As a narrator describes the scene, we watch the whole Katzenjammer clan camping in the park of the title, a composite of several national parks in the western USA. There are several spot gags, including Mama taking a picture of a bear and ending up being photographed by several bears. Mama has a run-in with the law for picking a flower; The Captain has his own for feeding a bear, which turns out to be a ranger/cop in disguise.
| Actor | Role |
|---|---|
 Billy BletcherThe Captain (voice) (uncredited) | The Captain (voice) (uncredited) |
 Mel BlancCar Motor / Drunk Fawn (voice) (uncredited) | Car Motor / Drunk Fawn (voice) (uncredited) |
 Danny WebbVarious (uncredited) | Various (uncredited) |
 Alan LaddNarrator (uncredited) | Narrator (uncredited) |