Sorry, I was describing the area of Black Rock Dam. Flatrock has quite a diversity of species in its downstream area, in part owing to the migration through Fairmount Dam's fish way since 1979. In the past the smallmouth population has been ok, but not great. The walleye population is fair. Stripers are occasionally caught there too. Flatrock fishway passage is not monitored, but fishway drawdowns for cleaning have revealed high usage at times. Photos I have seen have included channel cats, flatheads, gizzard shad, American shad, and, as I recall, perhaps some sunfish species. The fishway is owned and maintained by PaDEP.