The day after we watched the bats stream out of the Mulu caves my guide took me to Deer Cave. On the way we passed this dry riverbed.
I was quite surprised to find a dry, stony, riverbed hidden under the trees in the rainforest. It reminded me of dry riverbeds in the Libyan Desert, only with lots of trees.
As you can see, the stones are quite rounded and smooth which gives a hint to how far they've traveled and how violent the river is when it flows. We didn't have the time to trek this so I don't know how far it went. That the trees on the banks stand upright suggest the flow increases gradually rather than in a flash.
My guess is that runoff from the tree covered mountains flows through here after storms and in the monsoon season. The water mus flow fairly regularly as thee aren't any saplings growing between the rocks.
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