PointofInterestRoadSigns.com - Yellowstone National Park - Hayden Valley

 

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Yellowstone National Park - Hayden Valley

 

Location of sign - South end of Hayden Valley  in Yellowstone National Park

 

Photo taken May 2008

Hayden Valley, Hayden Valley Yellowstone National Park  

Close-up view of sign

 

Hayden Valley, Hayden Valley Yellowstone National Park

Wide view of sign

 

Text of sign:

 

Hayden Valley - Former Lakebed

 

Through pine forest blankets much of the Yellowstone Plateau, Hayden Valley is treeless grassland.  The broad valley floor, low

hills, and vegetation pattern show the ghost-contours of a former lake.  

 

Fed by melting glaciers, ancient Lake Yellowstone rose 270 feet during the recent Ice Age, and an arm of the lake flooded this 

area.  The forested ridge across valley marks the former shoreline.

 

In Hayden Valley you can see how glacial geology affects wildlife habitat.  As the ice receded, a thick layer of silt accumulated on

the lake floor.  The fine-grained clays and sands favor shrubs and grasses that support large herds of bison and a variety of other 

animals.

 

Graphics on the sign

 

In addition to the text there is a picture of buffalo in Hayden Valley as well as an insert map of where Hayden valley is and the 

former area covered by Yellowstone Lake.

 

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