There are a few ways to reach Sentinel Dome, but the hike described here is the standard route. It begins from Taft Point/Sentinel Trailhead along Glacier Point Road. The trail winds uphill through towering conifers and verdant mountain meadows, with intermittent views to the valley unfolding below. In about a mile, you’ll reach the exposed granite base of the dome. From there, no designated path leads to the top. Simply proceed upward in whatever way you find most manageable. Be sure to watch your footing for safety and avoid trampling any vegetation.

Take the same care when returning downhill, then retrace your steps for the quickest route back to the car. An alternative is to complete a loop around the dome with Roosevelt Point and Pohono Trails, which adds more overlooks on the valley rim.

Parking at the Sentinel Dome Trailhead is limited, so you should arrive early to secure a spot. If it’s full, consider starting from a different trailhead along Glacier Point Road. Note that Glacier Point Road is scheduled for complete closure in the year 2021 for reconstruction, but trails will remain open. During that time, the best way to reach Sentinel Dome is a much longer and more strenuous hike from the Four Mile Trailhead within the Valley.

Sources: https://www.nps.gov/yose/planyourvisit/glacierhikes.htm https://www.nps.gov/yose/planyourvisit/upload/glacierhikes.pdf