Editing Mount Erebus (section)

==Southern features==
Features of the southern slopes of the mountain include:
===Hoopers Shoulder===
{{coord|77|32|S|166|53|E}}. 
An independent cone at an elevation of {{convert|1,800|m}} high on the west slopes of Mount Erebus. From McMurdo Sound it appears as a perfect pyramid of black rock, standing out as a splendid mark against the background of the ice and almost on a line from [[Cape Royds]] to the crater of Mount Erebus. 
The cone itself is about {{convert|100|m}} high high and is surrounded by a deep moat or ditch, caused by the sweeping action of strong winds. 
It was named by F. Debenham on the second ascent of Mount Erebus for F.J. Hooper, a steward of the British Antarctic Expedition, 1910-13. 
Hooper was one of the party making the second ascent.{{sfn|Alberts|1995|p=344}}

===Cashman Crags===
{{coord|-77.540504|166.850438}}
Two rock summits at about  {{convert|1500|m}} high on the west slope of Mount Erebus. 
The feature is  {{convert|0.6|nmi}} southwest of Hoopers Shoulder. 
At the suggestion of P.R. Kyle, named by United States [[Advisory Committee on Antarctic Names]] (US-ACAN) (2000) after Katherine V. Cashman, [[United States Antarctic Research Program]] (USARP) team member on Mount Erebus in 1978-79 while a Fulbright scholar at Victoria University of Wellington; worked again on Mount Erebus, 1988-89; later Professor of Geology, University of Oregon.{{sfn|Cashman Crags USGS}}

===Williams Cliff===
{{coord|77|35|S|166|47|E}}. 
A prominent rock cliff that stands out from the ice-covered southwest slopes of Mount Erebus, situated {{convert|6|nmi}} east of [[Cape Barne]]. 
This rock cliff was mapped by the British Antarctic Expedition under Scott, 1910-13, and identified simply as "Bold Cliff on maps resulting from that expedition. 
It was named Williams Cliff by the US-ACAN in 1964 to commemorate Richard T. Williams, who lost his life when his tractor broke through the ice at McMurdo Sound in January 1956.{{sfn|Alberts|1995|p=815}}

===Tech Crags===
{{coord|-77.613497|166.767316}}. 
A narrow broken ridge {{convert|2|nmi}} south of Williams Cliff on Ross Island. The feature rises to about {{convert|1000|m}} high and marks a declivity along the north flank of broad Turks Head Ridge, from which ice moves to Pukaru Icefalls. Named by US-ACAN (2000) after the New Mexico Institute of Mining and Technology, known as New Mexico Tech. From 1981, many Tech students under the direction of Philip R. Kyle, have undertaken graduate research projects (thesis and dissertation) on Mount Erebus.{{sfn|Tech Crags USGS}}

===Three Sisters Cones===
{{coord|77|34|S|166|58|E}}. 
Three aligned cones at an elevation of about {{convert|1,800|m}} high on the southwest slopes of Mount Erebus. 
Named by members of the British Antarctic Expedition, 1910-13, under Scott.{{sfn|Alberts|1995|p=745}}
[[File:Operation-Deep-Freeze-Mt-Erebus-6851.jpg|Mount Erebus in December 1955|thumb]]

===Turks Head Ridge===
{{coord|77|38|S|166|49|E}}. 
A mostly ice-covered ridge extending from [[Turks Head]] for a few miles up the slopes of Mount Erebus. 
Mapped by the British Antarctic Expedition, 1910-13, under Scott and so named because of its association with Turks Head.{{sfn|Alberts|1995|p=764}}

===Esser Bluff===
{{coord|-77.638772|166.90775}}. 
A rock bluff rising to about {{convert|600|m}} high on the southeast margin of Turks Head Ridge. The bluff is {{convert|1.1|nmi}} east-northeast of Grazyna Bluff. At the suggestion of P.R. Kyle, named by US-ACAN (2000) after Richard Esser, a member of New Mexico Tech field parties on Mount Erebus in the 1993-94 and 1994-95 seasons; later a technician in the New Mexico Geochronology Lab at NM Tech, where he has dated many rocks from Antarctica.{{sfn|Esser Bluff USGS}}

===Grazyna Bluff===
{{coord|-77.642825|166.823222}}. 
A rock bluff rising to about {{convert|600|m}} high in the south part of Turks Head Ridge. 
The bluff is {{convert|1.5|nmi}} north-northeast of Turks Head. 
At the suggestion of P.R. Kyle, named by US-ACAN (2000) after Grazyna Zreda-Gostynska, who worked on Mount Erebus in 1989-90 as a member of the New Mexico Institute of Mining and Technology team. A Ph.D. student at NMIMT, she completed her doctoral dissertation on the gas emissions from Mount Erebus.{{sfn|Grazyna Bluff USGS}}

===Glacier Ridge===
{{coord|-77.593989|167.276256}}. 
A broad north–south ridge, {{convert|4.5|nmi}} long and {{convert|0.8|nmi}} wide, on the south slopes of Mount Erebus. Completely ice covered, the ridge descends from about {{convert|2200|m}} high to {{convert|600|m}} high, terminating {{convert|2.1|nmi}} northwest of [[Tyree Head]]. 
In association with the names of expedition ships grouped on this island, named after United States Coast Guard Cutter (USCGC) ''Glacier'', an icebreaker which for three decades, 1955-56 to 1986-87, supported scientific activity in Antarctica and Ross Sea on virtually an annual basis. 
From 1955-56, ''Glacier'' operated as a US Navy ship. 
Along with other Navy icebreakers, Glacier was transferred to the US Coast Guard fleet, June 1966, from which she operated until decommissioned, June 1987.{{sfn|Glacier Ridge USGS}}