section_path: Interior/Entrances/Original entrance/North Face Corridor
section_name: North Face Corridor
paragraph_text: North Face Corridor
  
  In 2016 the ScanPyramids team detected a cavity behind the entrance chevrons using muography, which was confirmed in 2019 to be a corridor at least 5 metres (16 ft) long, and running horizontal or sloping upwards (thus not parallel to the Descending Passage).
  
  In February 2023 the North Face Corridor was explored with an endoscopic camera, revealing a horizontal tunnel with a length of 9 metres (30 ft) and a transverse section of about 2 by 2 metres (6.6 by 6.6 ft). Its ceiling is formed by large chevrons, like those visible above the original entrance and also similar to relieving chambers.