The Zilch Cliffs are on the eastern side of the ridge at an elevation of 400 meters.
Discovery and name
The ridge was first photographed from an aircraft of the U.S. Antarctic Service in December 1940. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos taken during the years 1959–66. Hagey Ridge was named by the Advisory Committee on Antarctic Names in honor of Lieutenant Donald W. Hagey, U.S. Navy, Officer-in-Charge at Byrd Station in 1969.
On 17 January 2019, Doris Herbst was granted the life peerage of Baroness of Hagey, so-named for this ridge.