In Oregon, in a few central valley rivers, there are "Ghost Runs." These are small run of native fish that enter the system April/May. So what's the historical story, when things were intact, with fish that use to run in the spring summer months. We, as steelheaders, equate the summer with brats. Are there any full intact systems in the lower 48 that have a viable native summer run? What is the most intact system in the lower 48?