15 Clearest UFO Sightings Ever Recorded

15 clearest UFO sightings ever recorded.

The mysterious National Geographic photograph.

In 1971, the National Geographic Institute of Costa Rica undertook the creation of an aerial map focusing on the Arenal region, encompassing Lake Cote, as an integral component of the surveying efforts conducted on behalf of the Electricity Institute.

In the subsequent years of that particular decade, Costa Rica undertook the ambitious project of constructing a dam on a river, leading to the inundation of a significant portion of the surrounding area in order to form Lake Arenal.

This reservoir now serves as a crucial source of hydroelectric power for the nation, playing a pivotal role in meeting its energy needs.

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