leaf ▁Pe ak ▁is ▁a ▁mountain ▁in ▁the ▁Cas cade ▁Range ▁in ▁the ▁U . S . ▁state ▁of ▁Washington , ▁located ▁on ▁the ▁north ▁side ▁of ▁the ▁Columbia ▁River ▁near ▁Table ▁Mountain , ▁in ▁the ▁Columbia ▁River ▁G orge . ▁The ▁peak ▁lies ▁within ▁the ▁Columbia ▁River ▁G orge ▁National ▁Sc en ic ▁Area ▁near ▁B onne ville ▁Dam . ▁It ▁is ▁ ▁in ▁elev ation . ▁ ▁Botan ist ▁David ▁Douglas ▁clim bed ▁to ▁the ▁sum mit ▁in ▁September ▁ 1 8 2 5 , ▁making ▁this ▁the ▁first ▁recorded ▁mountain ▁as cent ▁in ▁what ▁is ▁now ▁Washington ▁state . ▁ ▁Just ▁south ▁of ▁the ▁sum mit ▁of ▁Green leaf ▁Pe ak ▁there ▁is ▁a ▁dram atic ▁esc arp ment ▁called ▁Red ▁Bl uff s , ▁which ▁connect s ▁Green leaf ▁Pe ak ▁and ▁Table ▁Mountain . ▁Appro xim ately ▁ ▁of ▁the ▁E agle ▁Creek ▁formation ▁are ▁exposed ▁at ▁Red ▁Bl uff s . ▁The ▁Red ▁Bl uff s ▁esc arp ment ▁was ▁created ▁by ▁the ▁repeated ▁collapse ▁of ▁Green leaf ▁Pe ak ▁and ▁Table ▁Mountain . ▁Mass ive ▁land sl ides ▁have ▁fallen ▁from ▁the ▁mountains , ▁creating ▁a ▁ ▁area ▁of ▁de br is ▁called ▁the ▁Cas cade ▁Land slide ▁Complex . ▁The ▁largest ▁and ▁most ▁studied ▁lands lide ▁is ▁known ▁as ▁the ▁B onne ville ▁S lide , ▁which ▁created ▁the ▁Bridge ▁of ▁the ▁God s ▁and ▁Cas cade ▁Rap ids ▁The ▁top ography ▁of ▁the ▁lands lide ▁complex ▁is ▁une ven ▁with ▁roughly ▁rolling ▁hills ▁and