▁the ▁new ▁landscape ; ▁he ▁in ▁time ▁became ▁the ▁chief ▁guide ▁to ▁the ▁post - er u ption ▁attra ctions . ▁War br ick ▁never ▁accepted ▁that ▁the ▁P ink ▁and ▁White ▁Terra ces ▁had ▁been ▁destroyed . ▁ ▁Red isc overy ▁The ▁terra ces ▁were ▁long ▁thought ▁to ▁have ▁been ▁destroyed ▁in ▁the ▁ 1 8 8 6 ▁er u ption . ▁However , ▁in ▁February ▁ 2 0 1 1 , ▁a ▁team ▁including ▁research ers ▁from ▁G NS ▁Science , ▁Wood s ▁H ole ▁Ocean ographic ▁Institution , ▁Lam ont - D oh ert y ▁Earth ▁Observ atory , ▁and ▁Wa ik ato ▁University ▁were ▁mapping ▁the ▁lake ▁floor ▁when ▁they ▁reported ▁discover ing ▁part ▁of ▁the ▁P ink ▁Terra ces . ▁The ▁lowest ▁two ▁t iers ▁of ▁the ▁terra ces ▁were ▁reported ▁found ▁at ▁ ▁deep . ▁A ▁part ▁of ▁the ▁White ▁Terra ces ▁was ▁also ▁reported ▁as ▁redis cover ed ▁in ▁June ▁ 2 0 1 1 . ▁The ▁announ cement ▁of ▁the ▁redis cover y ▁of ▁the ▁White ▁Terra ces ▁coinc ided ▁with ▁the ▁ 1 2 5 th ▁anni versary ▁of ▁the ▁er u ption ▁of ▁M t . ▁T ara wer a ▁in ▁ 1 8 8 6 . ▁ ▁The ▁ 2 0 1 1 ▁G NS ▁claims ▁of ▁redis cover y ▁were ▁challeng ed ▁by ▁Bill ▁Ke ir , ▁who ▁calculated ▁that ▁the ▁' red isc over ed ' ▁structures ▁were ▁not ▁where ▁the ▁terra ces ▁had ▁been ▁before ▁the ▁er u ption