Western North America, southern Arizona, New Mexico and western Texas.

Pacific slope of North America. Breeds in Canadian zone thruout Alaska and south to Vancouver Island.

Transition and upper Sonoran zones, west of Cascades and the Sierra Nevada from Washington to southern California.

A 50-foot tree with a stout 2 ½-foot trunk, distributed in moist vallies from the San Marcos River to the Rio Grande in western Texas.