The Mountains north of Kathmandu offers a great ranges of trekking choices, all within a day's drive from the capital-Kathmandu. The major attraction are the langtang valley, the sacred alpines lake of Gosaikunda and the rolling sherpa farmland of Helembu.Lantang region is the exellent choices for the trekkers for who have only a weak or looking for teahouses trek away from the crowds of the Annapurna and Everest regions.
Langtang region is in Rasuwa( Rasuwagadhi) district whic is the homeland of Tamang ethinic people who has rich in their typical traditions skills and lifestyle in mostly upper hilly area of Nepal.
WHEN TO TREK
Generally it is same as the rest region in Nepal, but snow in ganga-la , upper lantang valley and around Lauribina-la is heavy in winter, And horde of leeches are there in monsoon in lower region and remains hot too in summer due to low elevation.
check the weather conditions locally or with guide/porter before attempting to cross any high passes .(mainly in wintter)