Proglacial lake

[1] At the end of the last ice age about 10,000 years ago, large proglacial lakes were a widespread feature in the northern hemisphere.

[3] In modern times, the Hubbard Glacier regularly blocks the mouth of Russell Fjord at 60° north on the coast of Alaska.

Roughly every four years the glacier forms an ice dam against the rocky coast, causing the waters of the Lago Argentino to rise.

Because such ice dams can re-form, these Missoula Floods happened at least 59 times, carving Dry Falls below Grand Coulee.

Good examples of these structures can be found in the Channeled Scablands of eastern Washington, an area heavily eroded by the Missoula Floods.

Ironbridge Gorge in Shropshire and Hubbard's Hills in Lincolnshire are examples of a glacial overspill channel created when the water of a proglacial lake rose high enough to breach the lowest point in the containing watershed.

Argentinian proglacial lakes: Lago Viedma (middle), Lago Argentino (left) and Lago San Martin (right). Retreating glaciers are visible at the top.
Tarn —a proglacial lake impounded by the terminal moraine of the retreating Schoolroom Glacier in Grand Teton National Park , Wyoming
Glacial action forming a cirque to become a tarn, upon melting
Lake Blåvatnet in Lyngen Alps , Norway located below Lenangsbreene glaciers and surrounded by several moraines formed during Younger Dryas and early Holocene
The Hubbard Glacier closed off the Russell Fjord from Disenchantment Bay in 2002 to cause the waters behind the glacier to rise 61 feet (19 m) over 10 weeks in a proglacial lake until they broke through.
Stages of proglacial lakes in the region of the current North American Great Lakes