Hubert Glacier is a medium-sized glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 located on the south side of Mount Olympus

Mount Olympus (Washington)

Mount Olympus is the tallest and most prominent mountain in the Olympic Mountains of western Washington state. Located on the Olympic Peninsula, it is the central feature of Olympic National Park. Mount Olympus is the highest summit of the Olympic Mountains, however, peaks such as Mount Constance,...

 in the Olympic Mountains

Olympic Mountains

The Olympic Mountains is a mountain range on the Olympic Peninsula of western Washington in the United States. The mountains, part of the Pacific Coast Ranges, are not especially high - Mount Olympus is the highest at - but the western slopes of the Olympics rise directly out of the Pacific...

 and Olympic National Park

Olympic National Park

Olympic National Park is located in the U.S. state of Washington, in the Olympic Peninsula. The park can be divided into four basic regions: the Pacific coastline, alpine areas, the west side temperate rainforest and the forests of the drier east side. U.S...

. Due to its southern orientation, the glacier is smaller than those on the north side of Mount Olympus, such as Blue Glacier

Blue Glacier

Blue Glacier is a large glacier located to the north of Mount Olympus in the Olympic Mountains of Washington. The glacier covers an area of and contains of ice and snow in spite of its low terminus elevation...

.

Named for Anna Hubert, the only female member of the first ascent of Mount Olympus, the Hubert Glacier occupies a cirque

Cirque (landform)

thumb|250 px|Two cirques with semi-permanent snowpatches in [[Abisko National Park]], [[Sweden]].A cirque or corrie is an amphitheatre-like valley head, formed at the head of a valley glacier by erosion...

 at the bottom of the headwall

Headwall

In physical geography and geology the headwall of a glacial cirque is its highest cliff.In civil engineering, a headwall is a small retaining wall placed at the outlet of a stormwater pipe or culvert....

, with one branch extending to the south up the mountainside. Starting from this highpoint of the glacier at 6500 feet (1,981.2 m), it flows northward until it meets the glacial ice

Ice

Ice is water frozen into the solid state. Usually ice is the phase known as ice Ih, which is the most abundant of the varying solid phases on the Earth's surface. It can appear transparent or opaque bluish-white color, depending on the presence of impurities or air inclusions...

located in the cirque at about 5600 ft (1,706.9 m). The glacier changes direction and flows west to its terminus at about 5000 ft (1,524 m).