4 MOUNTAINS. NORTH AMERICA KEY TO RELIEF MAP 58. Map Studies. Find on the map the place where you live. ‘What oceans border on North America ? Which part of the world ridge is in North America? Along which coast does it lie ? Mexican Children. What does the relief map tell you about North America ? : The children in the picture live on the plateau of Mexico. Can you tell whether their home is in a warm place or in a cold one? ' What kind of clothing do these children wear ? Of what are the huts made ? This picture shows only country life. On some parts of the plateau of Mexico there are large towns and cities. 59. The Rocky Mountains. Where are the Rocky mountains ? In what direc- tion do they run ? The lofty range of the Rocky mountains runs along the: eastern. border of a part of the world ridge. Do you not think that this is a very heavy load for a little animal? What tools has he on his back ? Can you tell what each tool is used for ?