National Geographic : 1974 Apr
DOUGLAS FIR These huge trees tower 200 feet or more, with trunks 15 feet in diameter and bark a foot thick. Their strong, knot-free lumber ranks them first among all trees in commercial importance. W gr 4, COAST REDWOOD is the tallest known living thing. One tree towers 367 feet. But its girth of 44 feet cannot rival that of shorter, bulkier sequoias, with circumferences of more than 80 feet. ESTERN HEMLOCK is fine of texture and straight of ain. Among western trees, this shapely evergreen of the deep forests yields only to Douglas fir n volume harvested. I_i, r, PONDEROSA PINE, stately sentinel of western plateaus and mountains, feeds sawmills from Canada to Mexico. Specimens reach heights of 200 feet and live for 500 years.