THE COAST OF THE UNITED STATES 



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apparatus, are charted for him, so that in this way he may 

 be helped to ascertain his position. 



147. The Coast of the United States. The coast of the 

 United States presents a great variety of features. It has 

 long stretches of uplifted, depressed and fiorded, dune- 

 bordered, rock-bound, coral- and mangrove-fringed coasts. 



HARBOR. 



One of the finest harbors in the world. 



Along part of its sea border, harbors are abundant while 

 in other portions, harbors are almost entirely lacking. Its 

 recently uplifted western coast has still more recently 

 been slightly depressed, thus forming the harbors of San 

 Francisco, Portland and Seattle. This coast and the de- 

 pressed and Horded region of Alaska are paralleled, but 

 in no way duplicated, by the elevated south Atlantic 



