Trees have been recommended as buffers to screen out some of the rising intensity of noise levels from industry, automobiles, trucks, airplanes, motorcycles and radios. ... None of the east, however, can match the age of some western trees. ... Most intriguing is to discover the largest specimen of the common native trees of an area. ... The height of the tree and the spread of the branches is often measured. ... Historical societies are always interested in giving help for such activities.