A1 Hill is located in Muong Thanh Ward, Dien Bien Phu City, which was an important position during the war against French invaders in Dien Bien Phu. The hill covers an area of 53,350m2 and has two peaks: Northwest Peak with the height of 493m and Southest Peak with the height of 490m. Hill A1 played an important role in controlling the whole battle of Dien Bien Phu. Tourists can easily realize a hole atop Hill A1 – which resulted from the pressure of an explosion in Dien Bien Phu Battle. This hole has become one of the most tourists’ attractions.
This height stands block the way to the northeast sub-section. It has a significant role, controlling the whole battle of Dien Bien Phu. During 36 nights and days, the fierce battle claimed the lives of 2516 Vietnamese soldiers. Only until the night of May 6th, 1954 did Vietnamese soldiers win this decisive battle.
Besides Hill A1, from afar tourists can easily recognize the names of some hills named Doc Lap, Him Lam, Hill C, D and E. They are now well-preserved by Dien Bien People and Authorities.