It is a fractured granite, twin summited peak, and is close to geographic center of the park.

Tuolumne Peak is located approximately 2.5 miles (4.0 km) northeast of Mount Hoffmann via a granite ridge-line.

[3] Tenaya Glacier had effects, at least near Tuolumne Peak, during the Wisconsin Glacial Stage, over-topping the ridge that connects Tuolumne Peak to Mount Hoffman, isolating both tops.

[5] Most weather fronts originate in the Pacific Ocean, and travel east toward the Sierra Nevada mountains.

As fronts approach, they are forced upward by the peaks (orographic lift), causing them to drop their moisture in the form of rain or snowfall onto the range.