I used to fish the Rapid river when I lived in Washington. It is a wild river. One year the forest service came in and tried to tie down logs and rocks to provide hiding places for the fish. This was in the area of the first three bridges. The next years high water came and all the work put into the river was gone. I guess you could say the same for hobby gold panning. At certain times of the year the fishing was excellent. These high mountain streams seem to change with the seasons. By change I mean their beds. That does as much damage to the redds as gold panning does.