▁Park s ▁system . ▁In ▁ 1 9 5 4 ▁the ▁League ▁helped ▁ac quire ▁the ▁South ▁Gro ve ▁of ▁giant ▁sequ o ias ▁to ▁be ▁added ▁to ▁C ala ver as ▁Big ▁Tre es ▁State ▁Park . ▁▁ ▁In ▁ 1 9 6 0 , ▁the ▁Avenue ▁of ▁the ▁Gi ants ▁Park way ▁was ▁founded ▁in ▁H umb old t ▁Red wood s ▁State ▁Park ▁preced ed ▁by ▁a ▁ 4 0 - year ▁land ▁ac quisition ▁process ▁by ▁the ▁League . ▁In ▁ 1 9 6 8 , ▁after ▁years ▁of ▁lo bb ying ▁Red wood ▁National ▁Park ▁was ▁established ▁by ▁Congress . ▁▁ ▁In ▁the ▁ 1 9 7 0 s ▁and ▁ 1 9 8 0 s , ▁the ▁League ▁continues ▁to ▁protect ▁land ▁for ▁red wood ▁par ks . ▁Notable ▁ac quis itions ▁include ▁ 1 , 6 6 2 ▁acres ▁for ▁Pur is ima ▁Creek ▁Red wood s ▁Open ▁Space ▁Pres erve ▁and ▁ 3 , 8 5 8 - acre ▁Big ▁Creek ▁Reserve ▁for ▁Julia ▁P fe iffer ▁Burn s ▁State ▁Park . ▁▁ ▁In ▁the ▁ 1 9 8 0 s ▁and ▁ 1 9 9 0 s , ▁Navar ro ▁River ▁Red wood s ▁State ▁Park ▁lands ▁were ▁purchased ▁by ▁the ▁League ▁and ▁land ▁was ▁acquired ▁for ▁L ime kil n ▁State ▁Park ▁and ▁W ilder ▁R anch ▁State ▁Park . ▁In ▁ 2 0 0 1 , ▁the ▁League ▁purchased ▁the ▁D illon wood ▁giant ▁sequ o ia ▁gro ve ▁and ▁transferred ▁it