2 6 th ▁Congress ▁of ▁the ▁C PS U ), ▁and ▁one ▁of ▁the ▁largest ▁in ▁the ▁world ▁as ▁of ▁ 2 0 1 6 . ▁It ▁was ▁m ined ▁at ▁the ▁U d ach n aya ▁k im ber lit ic ▁pipe ▁( Y ak ut ia , ▁Far ▁Eastern ▁Federal ▁District ) ▁in ▁December ▁ 1 9 8 9 ▁and ▁named ▁after ▁the ▁world - f am ous ▁Russian ▁writer ▁Alexander ▁P ush kin . ▁It ▁is ▁kept ▁in ▁the ▁Russian ▁Diam ond ▁Fund ▁( M osc ow ▁Kre ml in ). ▁ ▁See ▁also ▁ ▁List ▁of ▁diam onds ▁List ▁of ▁largest ▁rough ▁diam onds ▁ ▁References ▁▁ ▁Category : C ult ural ▁dep ict ions ▁of ▁Alexander ▁P ush kin ▁Category : D iam onds ▁origin ating ▁in ▁Russia ▁Category : D iam onds ▁origin ating ▁in ▁the ▁Soviet ▁Union ▁Category : Ind ividual ▁diam onds <0x0A> </s> ▁Tar ▁Creek ▁is ▁a ▁ 2 0 0 9 ▁feature - length ▁environmental ▁document ary ▁about ▁the ▁Tar ▁Creek ▁Super fund ▁Site , ▁which ▁at ▁one ▁time ▁was ▁considered ▁the ▁worst ▁environmental ▁dis aster ▁in ▁the ▁United ▁States . ▁It ▁was ▁directed ▁by ▁Matt ▁My ers , ▁who ▁also ▁wrote ▁the ▁film ' s ▁script ▁and ▁served ▁as ▁its ▁narr ator . ▁ ▁Syn opsis ▁The ▁document ary ▁looks ▁at ▁the ▁Tar ▁Creek ▁Super fund ▁Site ▁and ▁chron icles ▁the ▁long - term ▁effects ▁of ▁min ing , ▁trib al ▁relations , ▁United ▁States ▁Environment al ▁Prote ction ▁Agency ▁management .