If you are looking for a good day hike in the Uintas, this may be it. Allow for 2.5 - 3 hours to the summit.
Follow the approach info to the Iron Hayden Wall
. From the base of the wall head right and up into a wide couloir. Hike up this couloir until it ends staying mostly on the left side and following a staircase of mostly solid rock. At the top, climb a short 4th class step on the left to get out of the couloir. Continue up a ridgeline heading for the summit (South) ridge. Follow the South ridge to the summit.
Descent: Reverse the route.
Hayden Peak west face.
This route consists of mostly hiking with some scrambling and lots of exposure. In spring and early summer much of this route will be under snow. Bring appropriate gear for exposed snow climbing at that time.