May remain closed on the tree for years. Thin, dark, and flaky. Abundant in the northern Rocky Mountains and Pacific Coast region. Grow from 0-11,500 ft. Those along the coast are commonly called shore pine.
Older trees have a distinct yellow or orange color.
Occurs in the Pacific Coast mountain ranges, throughout the Rocky Mountains, and into northern Mexico. Grows from sea level to 9000 ft. Flakes off in jigsaw puzzle-like pieces. Older bark is distinctly reddish-brown. Occurs in mountainous regions of the West, from southern Oregon through the Sierra Nevada, and into Baja, California.