Yosemite Ranger Notes

About This Blog

Ranger-naturalists have been interpreting the natural and cultural resources of Yosemite for park visitors for nearly a century. In this blog, some of Yosemite's park rangers share recent observations from around Yosemite.

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Yosemite Walls

September 22, 2014 Posted by: CK - Park Ranger (Yosemite Valley)

Yosemite Valley is a place best characterized by the contrast between stalwart permanence and ephemerality. Nowhere is this more evident than Yosemite Falls. Granite, 100 million years old, pitted against individual drops of water whose tenure on the canyon wall is a mere blink of the eye as they travel between the high-country snow and the Merced River. Following the course of the waterfall itself, we can find tenacious inhabitants.  Lichen, the union between algae and moss, proliferates.


Last updated: March 27, 2021

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