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This initial horizontal shaft segment is 1.72 meters long. At the beginning of Block No. 2 the shaft inclines at an angle of 39.20° (manually measured). This segment of the shaft is nearly round in cross-section and seems to have been enlarged after its initial construction, probably by the same treasure hunters mentioned above.

At Block No. 3 the shaft inclines more sharply, reaching an angle of 50.54° (manually measured), which it maintains to the end of Block No. 4.

Block No. 5 is not accessible to conventional measuring procedures. Here, our video images show that the shaft's angle of ascent declines. From this point, all the way to the outlet on the pyramid's flank (we measured both points), the shaft maintains an angle of 45°.