On the far side of the kiva is a sub-floor passageway which leads from the north antechamber underneath the north entrance and extends into the kiva floor.
It was probably roofed.
Some archeologists speculate that it was a secret entrance and exit for ritual participants.
The stonelined trough at the end of the passageway
- the only feature of its kind found in a great kiva - might have been the foundation of a brush enclosure wich concealed particip[ants until the time was appropriate to make a sudden entrance onto the floor of the kiva as though from the very center of the earth where some of the modern Pueblo deities are thought to dwell.

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