Upstream from Moha the now-dry riverbed runs through the immense gorge of the Bridge River Canyon, which lies immediately downstream from Terzaghi Dam, the principal dam of the Bridge River Power Project.
Because of the diversion of the river to Seton Lake by Terzaghi Dam and tunnels through Mission Mountain, which is in that area the south flank of the Bridge, what Bridge River water enters the Fraser now is largely the flow of one of the Bridge's tributaries, the Yalakom River.