This road was built in order to bring supply to the chinese by land. Previousely, Kunming could only receive goods sent in by plane above the Himalaya (the "hump" as pilots called it). The road was also called Stilwell Road and was more than 1000 miles (1700 km) in length on a dreadful terrain. 1100 americans died during its construction.
The terrain and road were done with Geocontrol 2.
The ecosystem for the foreground terrain contains more than 700,000 plants.
This image was showcased on the E-On Software website as Picture of the Day.
The GMC trucks and jeep on the road are from the Deespona collection.
The P40 is a stock Vue item. I only changed the texture on the blades.
Forest ground: PBR 4K textures on Renderosity.