The "hooked ridge" is just East of the #13 on the map. Just the very NW end of the ridge is hooked but if you move the map one click South you see the entire ridge more clearly. It appears that "Jacks Branch" originates on top of this ridge. It looks swampy by the markings on the topo. I'm getting side tracked but you should now be able to see the ridge.

As the ridge runs NNE the two sides are steep to both the East and West but the center of the ridge is "concave" if you will, with a nice gentle slope to the bottom of the ridge and to the "hook". I'd scout out the bottom of this ridge to see what sign is around but the hot spot I'm visioning is at the bottom of the NE side of this ridge.
http://terraserver.homeadvisor.msn.com/addressimage.aspx?t=2&s=11&lon=-89.943765632&lat=30.526426525&alon=-89.92244600&alat=30.488042&w=1&opt=0&a mp;addr=