Algae

Figure 11. Algae grows on rocks near the bottom of the falls, where spray is heaviest. (Photograph by Dirk Frankenberg. More about the photograph)

The rocks closest to the base of the falls get the heaviest spray. These rocks remain wet at all times and therefore make excellent places for the growth of attached algae. The green patches on the rocks shown in Figure 11 are algae. There are most obvious on the boulder in the upper right just below the top, and on the tops of the smaller boulders in the lower middle of the image.

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