The Snowcap Mountain Zone is a Zone that appears in one Sonic the Comic story, Issue 134's Eternity Ring. Seemingly uninhabited, the Zone is just how it sounds - snowy and mountainous. Perilous, with many hidden ravines and death traps, this Zone is the original home of the Eternity Ring.
In the one story it appears, Tekno the Canary and Amy Rose have come to the Zone to investigate strage energy readings. They soon have to face an avalanche, a spike-firing rock, a ghostly monster and a hidden crevice before the Eternity Ring reveals it was all a test. Amy and Tekno head into the Eternity Ring to begin their adventures through time and space.
The Snowcap Mountain Zone has not been, and likely never will be, seen again.