Topography
When you reach Sof Omar from Goro the scrubby bush steeply drops 90 m into a canyon. The river Web makes its way from the 4,300 metres (14,100 ft) high Bale Mountains and through a 150 kilometres (93 mi) wide outcrop of Anatole Limestone to the cave. In earlier times the river made a sharp left meander. At some point the cave dissolved a series of phreatic passages, which became big enough to capture the whole flow of the river Web. Eventually the river abandoned the meander creating a dry valley running from the cave sink at Ayiew Maco to the resurgence at Holuca. Sof Omar village is situated close to Ayiew Maco in the dry valley. Infill into the valley makes it rise to a high point of about 45 m above the Web, before it drops away to a pebble beach downstream of Holuca.
The other dominant feature is the large shakehole 100 metres (330 ft) wide and 60 metres (200 ft) deep. This is found on the basalt plateau directly above the cave.
Read more about this topic: Sof Omar Caves
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