Mossbrae Falls is a waterfall flowing into the Sacramento River, in the Shasta Cascade area in Dunsmuir, California.

[3] Approximately 50 feet (15 m) in height and 175 feet (53 m) wide, the falls are fed by springs that course down the canyon wall, and into the Sacramento River, creating the effect of many waterfall streams, two of them especially large, falling into the river.

The entire course of the falls is longer than 52 feet (16 m); however the upper cascades cannot be observed through flora that covers the mountainside.

[4] The city of Dunsmuir closed the illegal parking area in the Shasta Retreat neighborhood in 2011,[5] and has since built most of an extension to the Hedge Creek Falls trail that when finished will cross the river on a pedestrian bridge 1,800 feet (550 m) from the falls, but requires Union Pacific's permission to complete it.

[3] Alternate means of access are through Mineral Spring Trail and Angel Trail in Shasta Springs, a private property owned by Saint Germain Foundation, and white water rafting from Box Canyon Dam.