Gloam Valley is a place in Super Paper Mario. It serves as the main setting for Chapter 2 and is also the setting for Chapter 2-1.
Gloam Valley is a swampland that most likely is in a valley. Strange, Curly Foliage dot the background which are a contrast to the Bright orange, twilight sky. The sky is filled with complex molecular structures that resemble hexagons and the whole background is filled with never ending, thin, parallel lines which cause the sky to be partly covered as if you are looking through blinds all a time.
Chapter 2-1: Bogging to Merlee's
After hearing from Merlon that Merlee has the next Pure Heart, Mario, Princess Peach, and Tippi all set out for her mansion deep in Gloam Valley. Here, the group encounter many new enemies and puzzles. Also, Boomer is acquired here and is ability is needed to get through the level. Eventually, the group finally reaches Merlee's Mansion at the end of Gloam Valley.
- Gloam is a time of day right after sunset. Basically, another word for twilight. Given the swamp's orange sky, the name Gloam Valley fits as a perfect title.