Due to flooding over the past 40 years, there are not a lot of the old landmarks left in place. Going upstream from the rock hole, you have kingfisher flats and above that is the high bank hole. In zone 1 about the only landmarks left are the gauge tower and the holland dam. Original wing dams have all been washed out and replaced. I can't recall if the sycamore tree is still standing for the sycamore hole. The hole is definitely gone. And of course the original whistle bridge is gone.