Yes, Yosemite National Park is a proper noun, the name of a specific place.
Plutonic Ingenious Rocks.
Plutonic Ingenious Rocks.
Plutonic Ingenious Rocks.
Basins and canyons are both valleys. A basin is a wide valley shaped like a bowl and a canyon is a very narrow valley with steep sides.
Your dictionary should give an answer such as " a narrowing of a valley between hills...". The Grand Canyon of Colorado would be a common example.
Valley is not a proper noun. It's a common noun, honey. Proper nouns are specific names of people, places, or things like Betty White or Mount Everest. So, unless you're talking about a Valley with a capital V, it's just a regular ol' valley.
The word canyon is a common noun.
DISEASE was the most likely cause of death on the overland trails.
No, "canyon" is a common noun. A proper noun would be a specific name given to a canyon, such as "Grand Canyon" or "Bryce Canyon."
No, Grand Canyon is a proper noun; it is the name of a specific place, names are always proper nouns. A proper noun is always capitalized.
In this context, it is common. A specific canyon, like the Grand Canyon, is proper.