Height: 50′-60′ Spread: 35′-45′. Pyramidal to oval in its youth, gradually maturing into a broad crowned tree with a massive trunk and very stout branches. Bark is rough and deeply furrowed, dark gray to gray-brown in color. Acorns 3/4″ to 1 1/2″ are enclosed by a heavily fringed cap. The leaves are dark green on top, gray green beneath generally turning yellow to brown in the fall, but occasionally red. Withstands drought, wind, extreme cold and heavy soils. An excellent tree for Colorado. Full sun. Zone 3.