Four Main Geographic Regions Of Washington

Four Main Geographic Regions There are four main geographic regions in the state of Washington. All the four main regions have their own unique features and help show the vast difference of geography throughout Washington State. The first main region is known as the mountain region, which is made up of the Rockies, Cascades, and Olympic Mountains. The second main region is the Puget Sound Lowlands, the third main region is the Costal Range, and the last main region is the Columbia Plateau. The mountain geographic region is made up of the Rockies, Cascades and the Olympics. The Rocky Mountains passes through the northeast region of Washington. Rocky Mountains are also known as the “Columbia Mountains” due to the Columbia River traveling through it. The mountains were sculpted by the erosion of glaciers and transformed the Rockies into dramatic peaks and valleys. The minerals and “furs drove the initial economic exploitation of the mountains,”.

This “700 mile chain of mountains” has multiple of volcanic peaks. Mostly all the volcanoes are inactive. Mount St. Helens is one of many volcanoes that erupted in this region when it blew up in 1980’s. The highest point in Washington is Mount Rainier, which is also located in the Cascade Mountains. The most extrusive peaks in the region are Mount Rainier, Mount Adams, Mount Baker and Glacier Peak. The highest mountains in the range are all “mostly covered with glaciers and a permanent snow cover on top of the upper slopes” of the mountains. The lower mountains have slopes that are covered by damp forests which many of them are considered as the National Forest