SC 137 ALT: Appeared in 1942 as a stub from SC 137 into Cateechee. This had been part of mainline SC 137.
In 1947, SC 137 ALT was downgraded to S-39-31.
SC 137 ALT is shown but not labeled on the 1942 Official.

SC 137 through Cateechee 1940 Pickens County

SC 137 ALT's route in Cateechee (S-39-31) 1953 Pickens County

SC 137 ALT shown on 1942 Official (look between 137 and 139 circles) 1942 Official