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The Ingraham Glacier is a large glacier on the eastern flank of Mount Rainier, Washington. It covers an area of 1.5 mi² (3.9 km²) and contains 7 billion ft³ (198 million m³) if ice.[1] The glacier start out at the Disappointment Cleaver at over 12,200 feet (3,700 m) and flow eastward along with the large Emmons Glacier. As the glaciers head down to about 10,000 feet (3,000 m), the wedge from Little Tahoma Peak splits up the Emmons and the Ingraham Glacier.[2] While the Emmons glacier heads northeast, this glacier turns and heads southeast and joins the adjacent Cowlitz Glacier as a single valley glacier ending at around 5,500 ft (1,700 m) elevation.[2] Meltwater from the glacier drains into the Cowlitz River.[1]
[edit] History
About 35,000 years ago, the Ingraham Glacier were joined together. The resulting ice stream flowed 65 miles (105 km) down from Mount Rainer to near present-day Mossyrock. More recently, the Cowlitz - Ingraham glacier advanced as recently as the mid-1980s. Currently, the glacier is retreating.[1]
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