Complex sentence: The original Mamayev Kurgan was a Tartar burial mound 102 meters high, the current formation is dominated by a memorial complex commemorating the Battle of Stalingrad (August 1942 to February 1943).
Split into simpler sentences: The original Mamayev Kurgan was a Tartar burial mound 102 metres high. The current formation is dominated by a memorial complex commemorating the Battle of Stalingrad (August 1942 to February 1943).