The Beauty Of Historical River Channels

My social media stream this calendar week has been total of links to an one-time poster from the Oregon Department of Geology too Mineral Industries. The poster depicts the historical channels of the Willamette River, inwards Oregon.

The poster was created past times the Oregon Department of Geology too Mineral Industries in 2013 to demo the dynamic movements of the Willamette River over thousands of years. The information for the river map is from a lidar derived digital peak model of the Willamette River. It displays a l human foot peak arrive at amongst higher elevations colored night bluish too lower elevations shown inwards white.


The thought for mapping historical river channels goes dorsum at to the lowest degree equally far equally the early on 20th Century. In 1944 Harold Fisk published 15 maps showing the historical cast of the Mississippi River inwards a study entitled 'Geological Investigation of the Alluvial Valley of the Lower Mississippi River'. The study past times Harold Fisk (Geology Professor at LSU) was created for the Army Corps of Engineers.

The 15 maps inwards the study demo xx stages of the cast of the Mississippi over 2000 years. Some Bits has taken Fisk's 15 maps too overlain them on an interactive map. This allows you lot to meander downward the Mississippi on the map viewing all of Fisk's maps ane afterwards the other. It besides allows you lot to zoom inwards too out on details inwards Fisk's beautiful Mississippi maps.