The Columbia River undergoes drainage.
Nikoloz -LRB- Koka -RRB- Ignatov -LRB- Georgian  : ნიკოლოზ -LRB- July 29 , 1937 -- May 6 , 2002 -RRB- was a 20th-century Georgian painter .. Georgian. Georgian people. He studied at the Tbilisi State Academy of Arts .. Tbilisi State Academy of Arts. Tbilisi State Academy of Arts