National Park Mystery Spot 12 is Kennecott Mines National Historic Landmark, a National Park Service-administered property near the village of McCarthy in Alaska's Wrangell-St. Elias National Park and Preserve. Also known as Kennecott Mines, AHRS Site No. XMC-001, or simply Kennecott, the copper mining complex was operated for nearly 40 years before production ceased in 1938 and the complex was abandoned. The National Historic Landmark, which remains badly in need of restoration, includes the mines, ore processing facilities, and the company town of Kennecott (aka Kennicott), which had a peak population of about 300. The Kennecott complex has been an attraction for adventurous tourists since the 1970s.

You were given these clues to work with:

See you.

Being left behind is so unkind.

Not yours, not theirs, and not somebody else's.

A quarrel with a saint shows a lack of restraint.

Balladeer Johnny Horton sang about a direction.
Knowing which one it was will help you make this selection.

Here is the way to unravel it all.

Being left behind is so unkind refers to the concept abandoned.

See you is the phonetic expression of Cu, which is the chemical symbol for copper.

If it is not yours, not theirs, and not somebody else's, then it's mine.

When you put these three together you have abandoned copper mine.

A quarrel with a saint shows a serious lack of restraint puts the location in Wrangell-St. Elias National Park & Preserve. Another term for quarrel is wrangle, a word spelled and pronounced very much like Wrangell. The hyphenated name "Wrangell-St. Elias" is, in other words, "a quarrel with a saint."

Singer Johnny Horton's "directional" song was his 1960 hit North to Alaska. "North to Alaska" is not only the song's title, but also its refrain; the phrase is repeated no less than 15 times in the lyrics. BTW, the song was released on November 13, 1960, eight days after the popular singer was killed by a drunk driver.