Saturday, September 7, 2013

Petrified Watermelons

Edwin remembers driving through Glenns Ferry on a family trip and seeing a roadside sign pointing out large rocks that were petrified watermelons.  His son Bill told him the rocks were left behind by the glaciers.
(1937 Edwin, Evelyn, Elaine, and William Keith Perkins)
 
Melon Gravels.....As the water ripped through narrow reaches of the Snake's (River) canyon, it dislodged large basalt boulders and tumbled them downstream. Within a few miles these boulders had been rounded with diameters ranging from three feet to ten feet. These remnants were given the name melon gravels after geologists observed a billboard that advertised one patch of boulders as "petrified watermelons."
 
 
 
 

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