The wild and enigmatic northern regions of North America have always been a place of great mystery.

The wild beauty of Alaska, of Canada’s vast northern provinces, and their tranquil coastal areas, always captivated the attention of explorers and adventurers.

History here is rich too, with many venerated native tribes leaving their important mark on the land.

But one historic remnant did stir the imagination of scholars, and proved to be a bit of an enigma.

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The so-called Petroglyph Beach at Alaska’s city of Wrangell is an intriguing insight into the oldest traces of human habitation in the area.

What is more, it has one of the highest concentrations of intricate rock carvings in North America – and in the world too.

Read more: Ancient Origins