: 2 1 st - century ▁cer am ists ▁Category : B rit ish ▁women ▁cer am ists <0x0A> </s> ▁L ago ▁Las ▁Tor res ▁National ▁Reserve ▁is ▁a ▁national ▁nature ▁reserve ▁of ▁southern ▁Chile ' s ▁A ys én ▁del ▁General ▁Carlos ▁Ib á ñ ez ▁del ▁Cam po ▁Region . The ▁reserve ▁is ▁margin ally ▁travers ed ▁by ▁the ▁Car re tera ▁Austral , ▁which ▁borders ▁the ▁eastern ▁shore ▁of ▁Las ▁Tor res ▁Lake . ▁The ▁reserve ▁is ▁named ▁for ▁that ▁lake , ▁but ▁it ▁is ▁not ▁contained ▁within ▁the ▁reserve ' s ▁boundaries . ▁It ▁is ▁located ▁ 1 2 5 ▁km ▁north ▁of ▁Co y ha ique ▁and ▁is ▁border ed ▁by ▁Argentina ▁to ▁the ▁east . ▁C is nes ▁River ▁approximately ▁marks ▁its ▁northern ▁border . ▁ ▁This ▁protected ▁area ▁was ▁established ▁in ▁ 1 9 6 9 ▁as ▁a ▁national ▁park . ▁This ▁design ation ▁was ▁changed ▁in ▁ 1 9 8 2 ▁to ▁a ▁national ▁reserve . ▁ ▁References ▁ ▁Category : National ▁res erves ▁of ▁Chile ▁Category : Pro te cted ▁areas ▁of ▁A ys én ▁Region <0x0A> </s> ▁G ail ▁Susan ▁Nelson ▁( born ▁ 1 9 5 9 ) ▁is ▁a ▁math ematic ian ▁who ▁works ▁as ▁a ▁professor ▁of ▁mathematics ▁at ▁Car leton ▁College . ▁ ▁Education ▁and ▁career ▁Nelson ▁did ▁her ▁under grad uate ▁studies ▁at ▁the ▁University ▁of ▁North ▁Dak ota . ▁She ▁completed ▁her ▁Ph . D . ▁in ▁ 1 9 8 8 ▁at ▁the ▁University ▁of ▁Minnesota