Location: Route 321 and Route 346, Kamphaeng Saen
No reassurance shield after the 346 split.
Location: Route 321 and Rd 3018, Wang Nam Khiao
Turn left for Rd 3018.
Location: Route 321 and Route 3297, Thung Kraphang Hom
Shortly thereafter turn left for Route 3297 to Don Tum. Ratchaburi emerges as a control city for 321.
E to TH-375
E to TH-3232, W to TH-321
