Quaking Aspen Falls, Seasonal waterfall in Yosemite National Park, California.

Quaking Aspen Falls is a 75-foot waterfall off Tioga Pass Road in Yosemite National Park, dropping in a segmented, splayed form directly beside Highway 120. It is fed by snowmelt from a small drainage basin with a tiny lake at its head, and its stream joins Yosemite Creek a short distance downstream.

The waterfall has never been officially named; the names in common use refer to the quaking aspen trees growing immediately to its left, which shimmer in the wind generated by the falls. Other unofficial names include Tioga Pass Falls and Yosemite Creek Falls.

The falls have never been officially named; the common name refers to the quaking aspen trees growing immediately to the left of the water, which shimmer in the wind generated by the falls. Other unofficial names include Tioga Pass Falls and Yosemite Creek Falls. Its roadside visibility, rather than its size, makes it a landmark for drivers on Tioga Pass Road.

The falls drop 75 feet right beside Tioga Pass Road (Highway 120), so water splashes onto the roadway at peak flow. They run best in late spring and early summer, then typically dry up between mid-June and August depending on snowpack. The stream itself flows year-round above and below the falls.

The waterfall relies entirely on snow accumulation and can fail to flow in low-snow years. This unpredictability makes it a fleeting sight that requires visitors to time their trip carefully during peak melt season.