You may also look @ cell 16 in Laurens County.
855.3375,857.8125,858.8125
contol 859.8625,860.8125
This is the original palmetto 800 tower in the Spartanburg/Greenville County area.
I left off some cell 16 frequencies:856.4625,857.2125,857.4625,858.4625,866.7875.These frequencies can be monitored in Spartanburg County.The control frequencies are unknown.