Volcanic Caves of Victoria (Natural Bridge)

Natural Bridge Cave (3H-10), Mt. Eccles.

This cave lies at the end of an open lava channel. It formed by roofing of that channel as a result of levee overgrowth - as indicated by the "gothic" cross-section with a roof slot in places where the levees did not quite meet.

See also:
Report in Nargun (PDF) by K. Grimes, 2002.
Cave Report (PDF) (1998) with map and descriptions.

Selected photographs and diagrams

To view full size images, click on the displayed image.

Cross sections showing the "gothic" roof of the cave
This indicates its origin by the inward growth of overhanging levee banks to eventually bridge a lava channel.

Entrance to the cave - showing the characteristic roof shape.
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Inside the cave - showing the distinctive "Gothic" roof. 5m staff.
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Detail of the roof slot where the two levee walls come together.
Note the contorted thin layers on the left.
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