Mina is a valley six kilometres east of the Masjid Al Haram / Makkah. It’s where Hajj pilgrims sleep overnight on the 8th, 11th, 12th (and some even on the 13th) of Dhul Hijjah. The valley of Mina contains the Jamarat, the three stone pillars which are pelted by pilgrims as part of the rituals of Hajj.