Idaho   Waterfall Trail- northeast of Sun Valley recommended by Ann and family from California directions: from the 75 exit on Trail Creek Road, take Trail Creek Road, take right onto East Fork of the Big Lost River, right onto Wild Horse Creek Road, pass the ranger station and first left to end for trailhead -  Ann advises driving slowly as last part of trip is on narrow dirt road -  1.5 mile trail leads to waterfall with viewing station