antarctica mount mountain dominates southern located claims argentina chile united_kingdom elevation metres highest mountain discovered members named seventh president united_states ascent team led geology studied investigations team mountains central bounded west central land mountains rise ice shelf metres east zones forming plateau steep snow slopes rises southeast flanks displaying summit north flank occupied vast mountain east measure kilometres length display ends history mapping carried november party ground survey facilitated aerial photographs aerial observations height estimated metres mountain named governor alaska territory time later renamed seventh president united_states president jackson signed bill law authorizing expedition led included exploration surveying pacific_ocean surrounding lands including antarctica november ground party based observed estimated height metres considerably lower accurate estimate renamed series depots developed including members successful making mountains served base climb traveling dog kilometres team reached summit november precise height summit determined survey party ascended peak summer geography mountain metres height prominence metres saddle metres mountains central bounded west central land elevation ranging metres west central mountains rise ice shelf metres east zones forming plateau steep snow slopes northern mountain system extends kilometres covers highest peak rises southeast flanks displaying summit north flank occupied vast mountain east measure kilometres length display ends separated drains eastern arriving inlet geology studied investigations team identified rock types underlying volcanic activity relief west facing slopes compared eastern characterized steep rocky face rock intense area spread fresh rock formations bedrock noted
Mount Jackson (Antarctica)