s ▁were ▁no ▁longer ▁places ▁of ▁un limited ▁natural ▁resources , ▁but ▁were ▁now ▁considered ▁a ▁place ▁where ▁resources ▁needed ▁to ▁be ▁conser ved ▁through ▁reg ulation ▁to ▁ensure ▁future ▁and ▁continued ▁use . ▁ ▁J . B . ▁H ark in , ▁the ▁Park s ▁Commission er ▁in ▁ 1 9 1 1 , ▁advoc ated ▁the ▁complete ▁er adic ation ▁of ▁coal ▁and ▁min eral ▁extra ction ▁in ▁the ▁par ks . ▁However , ▁H ark in ' s ▁vision ▁did ▁not ▁come ▁to ▁f ru ition ▁until ▁ 1 9 3 0 ▁when ▁the ▁National ▁Park s ▁Act ▁was ▁established . ▁Under ▁this ▁act , ▁min eral ▁expl oration ▁and ▁development ▁were ▁b anned ▁and ▁only ▁limited ▁use ▁of ▁tim ber ▁was ▁permitted ▁within ▁the ▁par ks . ▁For ▁Canada ▁to ▁continue ▁its ▁economic ▁success ▁through ▁resource ▁development , ▁the ▁boundaries ▁of ▁Canada ' s ▁National ▁Park s ▁were ▁alter ed ▁prior ▁to ▁the ▁ 1 9 3 0 ▁Act ▁in ▁order ▁to ▁exclude ▁resource ▁rich ▁land ▁from ▁park ▁areas . ▁The ▁ex clusion ▁of ▁resource ▁development ▁in ▁Canada ' s ▁National ▁Park s ▁marked ▁a ▁minor ▁shift ▁towards ▁pres ervation ist ▁att itudes ▁over ▁Canada ' s ▁par ks ▁as ▁recre ational ▁use ▁and ▁development ▁was ▁still ▁permitted . ▁ ▁Human ▁conflict ▁ ▁The ▁initial ▁ideal ▁of ▁National ▁Park s ▁was ▁one ▁of ▁un in hab ited ▁w ilder ness . ▁Creating ▁this ▁required ▁the ▁disp lacement ▁of ▁ind igen ous ▁and ▁non - ind igen ous ▁residents ▁who