AH42

Asian Highway 42
Route information
Length3,754 km (2,333 mi)
Major junctions
North endLanzhou, China
Major intersectionsBakhari, Mehsi, Bihar, India
South endBarhi, India
Location
CountriesChina, Nepal, India
Highway system
AH41 AH43

Asian Highway 42 (AH42) is a route of the Asian Highway Network, running 3,754 kilometres (2,333 mi) from AH5 in Lanzhou, China to AH1 in Barhi, India.

Passes through China, Nepal, and India, it is the nearest Asian Highway to Mount Everest.

More than half of the route, from Lhasa to Lanzhou in China, is labelled as a "Potential Asian Highway."