The new route turned west from Muong May, at the southern end of Laos, and paralleled the Kong River into Cambodia. Eventually, this network extended past Siem Prang and reached the Mekong River near Stung Treng.
The new route deviated westward from Muong May, at the southern end of Laos, and followed the Kong River into Cambodia. Eventually, this network extended beyond Siem Prang and reached the Mekong River near Stung Treng.