The months of April to September are good time to UpperDolpo Trek. Before April all high passes are blocked by snow and after September it start to snow. Still trek is possible till end of October with heavy-duty equipment. And after November is completely not possible to trek in upper Dolpo due to high risk of snowing. Upper Dolpa region is full of rare herbs and wild animals. Upper Dolpo Trek a lucky one sight blue sheep, Ghoral, Cheetah and even snow Leopard and many other species of animals. Dolpa is home of rare plants like Cordyceps Sinensis, Nardostachys, Dactylorhiza Hatagirea etc.