Been fishing the harpeth for a while. Me and a buddy float it a lot in the Bellevue area. We've put in off of Old Natchez Trace, Moran Rd, Hwy 100 access, Newsome Station. While in high school, the Little Harpeth (Edwin Warner Park) produced some decent fish from time to time. Also use to fish the South Harpeth (towards Kingston Springs) and Brush Creek (tiny creek with some holes). My favorite is Turnbull (Dickson County). It's just of the interstate (ex 182). I've been lucky the past 30 years to have access to it from a couple different properties and had great success. When floating, we carry two poles each. One has a spinnerbait, topwater, zoom lizard, grub or slider. Best bait is spring lizards or live crawfish.
Yep, Itoo have floated some of those areas, Up until the may floods we could catch some good largemouth and a few brown fish. Ill still go several times a year but here lately have gotten addicted to ky. lake. Black and blue bitsy bug in the spring when the grass starts popping up out of the water=GOOD TIME!!!
And yes, the harpeth does still have crappie. Hard to find, but we do catch 1-2 each trip by accident.