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- View of the rift valley that marks the crest of the Mid-Atlantic Ridge and the boundary between the North American and Eurasian tectonic plates. Thingvellir National Park. Puzzle #390817142
View of the rift valley that marks the crest of the Mid-Atlantic Ridge and the boundary between the North American and Eurasian tectonic plates. Thingvellir National Park. Puzzle #390817142