In "Tourist Trapped," after the gnomes, who had disguised themselves as a teenage boy named "Norman," reveal their true identity to Mabel Pines and propose to her, they feel the need to kidnap her and take her back to the forest when she states that she can't marry a group of gnomes. Soon Dipper Pines, believing "Norman" to be a zombie, comes to his sister's aid and frees her from the gnomes' clutches, and the two head home in the Mystery Cart. The gnomes, however, wish to retrieve Mabel and crown her as their queen, and they assemble into a single, giant monster and chase the twins. The forest later appears in the end credits. It also serves as the fourth level in the game "Fright Night."
The forest is accessible via a steep slope. It contains various plants, predominantly trees, and moss fungi, notably mushrooms. Stones and puddles can be seen on the ground. The ground also has various levels and is largely covered by grass and mushrooms.
- The gnome forest was drawn and inked by Sean Jimenez and painted by Elle Michalka. Art director Ian Worrel helped design the location.