Harlequin Dome is a granite dome, quite near Tenaya Lake, in the Tuolumne Meadows region of Yosemite National Park.
From the parking lot at Tenaya Lake, cross Highway 120, hike up slabs to a short headwall. Continue up the trail to the base of the cliff.
Harlequin Dome is directly across from Pywiack Dome.
Harlequin Dome is south-facing, thus warm, and is also steep. It has one-to-three pitch climbs, but the climbs wander a bit, and the approach is easier.