When to use article 'The'? [duplicate]

Solution 1:

I'd say you are correct about the placement of the generic word being the reason for using (or not using) 'the' , and all your examples are phrased correctly. Notice that 'Falls' is different also in that it is a plural.

Edit: I have found the answer:

From Wikipedia:

In English, nouns must in most cases be preceded by an article that specifies the presence or absence of definiteness of the noun. The definite article is the in all cases other than generic references, which use the zero article (i.e., the absence of an article), while indefiniteness is expressed with a or an for singular nouns or the zero article for plural or non-count nouns.

From Monmouth University:

The definite article 'the' is used before both singular and plural nouns when the noun is specific. The names of geographic places are specific names and may require definite articles: names of rivers, oceans, seas, geographical areas, deserts, forests, gulfs, peninsulas, groups of lakes (the Great Lakes), mountain ranges, and chains of islands.

No article is necessary before the following specific nouns: Singular names of countries or territories, cities, towns, states, streets, lakes, bays, mountains, continents, islands, languages, sports, academic subjects.

Solution 2:

The use of definite articles with names for inanimate objects in English should be understood on a case-by-case basis. There is, as far as I know, no principled reason behind the distribution of definite articles.

Here is what Hawthorne and Manley (2012) say on the subject:

in English there are various situations where names in subject position require articles. Thus, when modifying names with adjectives we almost always add articles: ‘A/The bleary-eyed Bill Clinton emerged’, ‘Now the incredibly agile Jordan is weaving through his opponents’....

Even unmodified singular names are often prefixed by the definite article, such as names for rivers and newspapers.... Moreover, no deep distinction divides names that are prefixed by the article and those that are not. Names for oceans typically have an article, while names for lakes typically do not; in California, numerical names for highways have them (‘take the 405’), while on the east coast they do not (‘take 287’). One might object that, for example, in ‘the Thames’ the article is somehow fused into the name and no longer functions as a determiner. But note that the article gets distanced from the name when adjectives are added: ‘the mighty Thames’, ‘the vast Pacific’, ‘the notorious Wall Street Journal’ and so on.

Hawthorne and Manley, The Reference Book (2012).

From this passage, we observe:

• Name for rivers typically have articles ("the Thames", "the Nile", "the Niagara River").
• Names for oceans typically have articles ("the Atlantic", "the Indian Ocean").
• Names for lakes typically don't ("Lake Erie", "Lake Michigan").
• In California, names for highways have articles ("take the 405").
• On the east coast, names for highways don't have them ("take 287").
• Names for newspapers typically have articles ("the Wall Street Journal", "the New York Times").

We might add:

• Like oceans, seas also have articles ("the Mediterranean Sea", "the Black Sea").
• Waterfalls typically don't have articles ("Niagara Falls", "Victoria Falls")
• Canyons sometimes have articles, but sometimes don't ("the Grand Canyon", "Colca Canyon")

You can make similar observations about names for bridges, buildings, squares, publications, etc.

Why names for some types of geological features and artifactual entities seem to require the definite article while others don't is an open question. There may be no principled reason.