Mount Borah is the tallest peak in Idaho, with a peak 12,662 above sea level. The trailhead is 20 miles north of Mackay, and the ascent is about 4 miles and 5000 feet.
If you're only going to look at a couple, I recommend (*).
The Ascent:
The Grand Tetons in the distance (we think)
At the top:
*That's Champagne he's drinking
We were happy to have a sandwich this size
The descent: *More Chicken Out Ridge