Jeffers Glacier is a 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 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...

 in 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...

. The body of ice, relatively small compared to the nearby 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...

, is located southeast 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,...

. Beginning at foot of a very steep 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....

 at about 5800 feet (1,767.8 m), the glacier flows and descends northeast to about 4900 ft (1,493.5 m) before terminating. There is an arm of the glacier which extends southward on a flat area at about 5150 ft (1,569.7 m) in elevation. This extension of ice terminates in a lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

.

The Jeffers Glacier is named for Olympia photographer Joseph Jeffers, who died after falling into a crevasse there in 1924.