It is difficult to appreciate the size of the giant sequoias because neighboring trees are so large. The largest of the sequoias are as tall as an average 26-story building, and their diameters at the base exceed the width of many city streets. As they continue to grow, they produce about 40 cubic feet of wood each year, approximately equal to the volume of a 50-foot-tall tree one foot in diameter.

The ages of the General Sherman, General Grant and other large sequoias are unknown, but it is estimated that these giants are between 1800 and 2700 years old. They have seen civilization come and go, survived countless fires and long periods of drought, and continue to flourish -- inspiring yet another generation of admirers.