Abies procera is a large evergreen tree up to 40-70 m (130-230 ft.) tall and 2 m (6.5 ft.) trunk diameter, rarely to 90 m (295 ft.) tall and 2.7 m (8.9 ft.) diameter,[REF] with a narrow conic crown.
Abies procera is very closely related to red fir (Abies magnifica), which replaces it farther southeast in southernmost Oregon and California, being best distinguished by the leaves having a groove along the midrib on the upper side; red fir does not show this.