Chester, ID

ZIP code 83421 is located in Challis, Idaho, a small town surrounded by stunning natural beauty. This area is known for its close proximity to the Salmon River and the majestic mountains of the Frank Church River of No Return Wilderness Area. Important landmarks in this ZIP code include the Challis Hot Springs and the Challis Bison Jump archaeological site, offering visitors a glimpse into the area's rich history and natural wonders.