Using the with geographic nouns

When to omit the

streets, squares, parksIvy Street, Union Square, Denali National Park
cities, states, countiesMiami, New Mexico, Bee County
most countries, continentsItaly, China, South America, Africa
bays, single lakesTampa Bay, Lake Geneva
single mountains, islandsMount Everest, Crete

When to use the

country names with of phrasethe United States (of America), the People's Republic of China
large regions, desertsthe East Coast, the Sahara
peninsulasthe Baja Peninsula, the Sinai Peninsula
oceans, seas, gulfsthe Pacific Ocean, the Dead Sea, the Persian Gulf
canals and riversthe Panama Canal, the Amazon
mountain rangesthe Rocky Mountains, the Alps
groups of islandsthe Solomon Islands