riddle - Four Directions #5 - Where and what am I?

To the West, they are young and grand
To the North, they are high and briny
To the East, they are enchanting and jolly
To the South, they are rising and shiny

I'm all at once and none at all.

Where and what am I?

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Hint #1:

Each direction line is describing two separate things - one adjective for each.

Hint #2:

Although hint #1 is true, there are only four things being described

Hint #3:

Four of the adjectives should really be capitalized.

Hint #4:

This rancher doesn't grow corn, but he sure does use a lot.

Hint #5:

...from the ashes

Hint #6:

High? Or like...high? Yes. And...yeah, could be!

Four Directions #1
Four Directions #2
Four Directions #3
Four Directions #4

Answer

Not sure of every clue, but I think you are

the Four Corners states (Arizona, New Mexico, Colorado and Utah).

To the West, they are young and grand

Brigham Young founded Salt Lake City in Utah, the Grand Canyon is in Arizona.

To the North, they are high and briny

Colorado has tall mountains and legal marijuana, the Great Salt Lake is in Utah.

To the East, they are enchanting and jolly

New Mexico is the "land of enchantment", Jolly Rancher candy is made in Colorado.

To the South, they are rising and shiny

Phoenix rises from the ashes and is a city in Arizona. Not sure why New Mexico is shiny...

I'm all at once and none at all.

"Four Corners" refers to all the states together. I think the actual corner area is a Native American territory not under the control of any of the states?