Art by Nigel Dobbyn
Not to be confused with the Sunshine Valley Zone.
The Sun Valley Zone is a Zone on Mobius. The mountainous region got its name because the weather is always sunny there. However, this notion was challenged when a thick, unnatural fog spread throughout the Zone. As requested by Johnny Lightfoot (actually Shayde), Tails visited the area in his biplane, but crash-landed because he couldn't see the cliffs in the fog. He eventually discovered that the fog was caused by Windy Wallis, who was in league with Agent X. Tails destroyed the weather machine with Johnny's staff but was unable to stop the two villains.