Day 14: Challis, ID to Idaho Falls. 276 miles. Posted on May 14, 2016 by Scott DCIM100GOPROG0015949. DCIM100GOPROG0016474. DCIM100GOPROG0016688. DCIM101GOPROG0016916. DCIM101GOPROG0017023. DCIM101GOPROG0017249. DCIM103GOPROG0019021. DCIM103GOPROG0019810. Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading...