The Leh–Manali Highway ( Leha-manali rajamarga) is a highway in northern India connecting Leh in Ladakh in Jammu and Kashmir state and Manali in Himachal Pradesh state. It is open for only about four and a half months in a year in summer between May or June, when the snow is cleared, and mid-October when snowfall again blocks the high passes. It connects Manali valley to Lahaul and Spiti valleys and Zanskar valley in Ladakh.