Mt Nebo Summit
At 11928 feet, Nebo is the highest of the Wasatch peaks. (It is some 179 feet higher than the more famous Mt Timpanogos.)
This is a strenuous hike. The distance is not that great, but the 3800 feet elevation gain is daunting. Many people do this as a long day hike but it may be better as an overnight backpack.
There are no water sources along the trail. That means you have to carry plenty, which adds to the difficulty.
From the town of Payson, get on the Nebo Scenic Loop road and drive about 24 miles to the signed Nebo Bench Trailhead. You may start hiking there, or follow the dirt Mona Pole Road along the fence-line for another .3 miles to a second parking area slightly closer to your destination.
From the trailhead, follow the signed trail up the mountain. A series of switchbacks lead upward, through forest and alpine meadow.
You'll eventually reach a narrow ridgeline, which you can follow to the summit. The trail is rocky steep, and somewhat treacherous. Some hikers turn back when the reach the ridgeline, but it is worth continuing on to the actual summit.