FOREST DISTRIBUTION AND COMPOSITION. 



207 



and both the red fir and the redwood often grow to be over 250 feet 

 high, and yield 100,000 feet, B.M., to the acre as against 10,000 feet, 

 B.M., of good spruce in Maine. The redwood, Fig. 53, occupies a 



Fig-. 52. Virgin Forest of Red Fir, Red Cedar, Western Hemlock, and Oregon 

 Maple. Ashford, Washing-ton. U. S. Forest Service. 



belt some twenty miles wide along the coast from southern Oregon to 

 a point not far north of San Francisco and grows even taller than the 

 famous big trees. The big trees are the largest known trees in diam- 

 eter, occasionally reaching in that measurement 35 feet. 



