Glacial Lake Missoula Map

Glacial Lake Missoula Map product image

Glacial Lake Missoula is a remarkable map by the US Forest Service that uses shaded relief to show the huge lake created in Western Montana as a result of glacial dams during the last ice age. It also shows the scablands and canyons of Eastern Washington that were formed when these ice dams broke to release "the greatest floods known in geologic history."

40 in. by 4 in. shipped 1 pound
for just $12.95
37 in. by 46 in. open 1:1,000,000 (1 in. = 15.8 mi.)

Bundle the above with "Glacial Lake Missoula and Its Humongous Floods" and save 10%!

As geologist J. Harlen Bretz walked the dry scabland channels of eastern Washington in the 1920s, it dawned on him that he was viewing a landscape sculpted by water. Lots of water. A flood of catastrophic proportions. Glacial Lake Missoula and Its Humongous Floods tells the gripping tale of a huge Ice Age lake that drained suddenly--not just once but repeatedly--and reshaped the landscape of the Northwest. The narrative follows the path of the floodwaters as they raged from western Montana across the Idaho Panhandle, then scoured through eastern Washington and down the Columbia Gorge to the Pacific Ocean. This is also the story of geologists grappling with scientific controversy--"of how personalities, pride and prejud… read more

$14.95 + $12.95 - 10% = $25.11