Mazama Glacier is located on the southeast slopes of Mount Adams, a stratovolcano in the U.S. state of Washington.

[3] Mazama Glacier has been in a general state of retreat for over 100 years and lost 46 percent of its surface area between 1904 and 2006.

[2] Originally known as Hell-roaring Glacier, the name was changed in 1895 by a group from the Mazamas club while they were on their second annual outing.

[4] Lunch Counter camp lies along the eastern edge of Mazama Glacier, upon Suksdorf Ridge at an elevation of 9,350 ft (2,850 m).

[5] There is no weather station, but this climate table contains interpolated data.