Oregon white oaks, also known as Garry oaks or savannah oaks, are Washington's only native oaks. DuPont, Washington, has a number of landmark trees that are between 100 and 250 years old.
Rare oak savannah
Gravelly savannahs were created by retreating glaciers more than 15,000 years ago and are now one of the rarest ecosystems in North America.
Quercus garryana became a dominant feature of these savannahs.