NewzThe Sima de Alcorón is a 63-meter-deep natural sinkhole located within the Alto Tajo Natural Park in the province of Guadalajara, Spain. Formed approximately 2.6 million years ago, the geological formation is noted for a specific optical phenomenon created by the entry of sunlight into the subterranean space.
The site represents a significant natural feature sculpted by long-term geological processes. Its formation dates back to the Pliocene epoch, and it remains a point of interest due to the interplay between its physical structure and the light conditions that occur within the shaft.
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