This is damn interesting.

Headphones recommend it.

In 1952, geologist Don Miller was conducting a petroleum

in the region surrounding the Gulf of Alaska

when he encountered a vaguely disquieting geological anomaly.

While surveying a remote fjord known as Latoya Bay,

Miller found that the dense mature forest that surrounded the bay

ended abruptly hundreds of feet upslope of the water.

There was some vegetation growing below the distinct line, but it was all upstart

grasses and saplings and such. It was clear that at some point in recent history, an unknown,

massive force had scraped the shores clean, and the vegetation was only beginning to reclaim the

land. There was no evidence that a fire had passed through.

None of the surviving trees were charred, nor were the few remaining tree stumps.

Instead, it appeared that the trees had been bent and twisted away by some powerful lateral force.

The damage resembled a trim line, like those left behind when a glacier recedes, exposing

a line of bare rock alongside vegetation.

But there was no glacier in a location that would account for it.

A tsunami could also theoretically cause such destruction, but the boundary was much farther

upshore than any tsunami in recorded history.

Upon investigating further, Miller discovered other older trim lines around the bay, suggesting

that the destructive event had occurred multiple times prior, each a few decades apart.

This was not typical Bay behavior.

...