Show Largest Trees in Canada The Dauglas fir Or attains the largest size of any tree In Canada and with the exception of the redwood of oC California Call Cali fornia Is te tle largest tree on the North American continent It has reached a height of feet and three 15 feet In din diameter meter have hae been found A single e Douglas fir has scaled as much as GO- GO feet board boar measure Specimens more than years cars old have hae ha e been found but comparatively few are found more than years of u age e. e |