RE: Archisneaks perhaps i was wrong with respect to Morrison being at the headwaters of the Skeena River however, it appears from this statement that Morrison does eventually drain into the Skeena:
The concerns the ministers had could not have been a surprise to PacificBooker, the response states. Ministry employees had consistently said theywere worried about the "high ecological values at stake." Of some concernwas the company's plan to discharge treated water into nearby Morrison Lake.Water from the lake takes a lengthy path that eventually leads to the SkeenaRiver.