233 is the old designation. 93B leads up to the backend of 93C which is where the Wall and Rattlesnake Hill are.
Our route was:
Park & pay at the Windy Hill Road lot.
93C into the OHV area.
Down 93E onto 93D
Get confused because the trail marker where 93D turns ito 93C designates 93C as 93G.
Start looking for a turnarund because we thought we were on 93G ("the sign must be right, right?") and come to a decent clearing, which I recognize as the top of Blue Rock. The sign was wrong.
Down 93C for 100 yards (this is where all of the drama happened) and take a right on 93B.
93B until we hit 93A, then took a left.
93A to 93C, back to the pay station.
We left Waffle House around 10:20, were unloaded and on the trails by 11:00, and were off the trails by 5:00.
My understanding of the naming was that Lower Rattlesnake was on the 93D loop between 93G and 93F, and Upper Rattlesnake was on the loop between 93F and 93E, and since we came down 93E and took a left, that we had missed them. I could be wrong though.
Point of interest - looking at the area on a topo map, It looks like Blue Rock is 3320'. The point where 93B hits 93A is at roughly 2320'. The route we took drops ~1000' in a little better than 1/4 mile. No wonder it seemd steep...