Originally Posted By: Salman
So is seeing 12-18” of mud on top of big softball to watermellon size rocks scour? I couldn’t exactly see all of the spawning bed but from what I saw the mud covered an area way bigger then before.


As CM posted, mud is not scour. Mud is composed of silt and fine sediment. Fine sediment that settles out on a salmonid redd smothers the eggs by limiting the flow of oxygen rich water through the incubating eggs that is necessary for their survival.