Washington

 

Geological State Symbols Across America           Geology of the National Parks Through Pictures


Washington State Geological Symbols
Type
Symbol
Year Established
State Gem
Petrified Wood
1975
State Fossil
Columbian Mammoth
1998

 

State Gem: Petrified Wood

 


State Fossil: Columbian Mammoth


 

References

https://statesymbolsusa.org/states/united-states/washington


Geology of Washington's National Parks

Through Pictures

(at least the one's I have been to)