|Location||Mount Rainier National Park, Pierce County, Washington, United States|
|Elevation||5,739 ft (1,749 m)|
|Total height||400 ft (120 m)|
|Number of drops||1|
|Longest drop||400 ft (120 m)|
|Total width||10 ft (3.0 m)|
|Average width||10 ft (3.0 m)|
|50 cu ft/s (1.4 m3/s)|
|World height ranking||646|
The falls plunge about 400 feet (120 m) off a sheer columnar basalt cliff, unbroken for almost 200 feet (61 m), into an amphitheater-like basin, similar in form to the main drop of nearby Comet Falls. The columnar basalt was likely formed by cooled eruptions of Mount Rainier, which is a stratovolcano. Near the base, it crashes onto a rock ledge and fans out towards the left bank, before dropping again vertically onto a pile of talus and cascading downwards. It is located in a steep canyon on the southwest face of Mount Rainier. Pearl Creek drains to another glacial stream, Pyramid Creek, which parallels then flows into Kautz Creek and finally into the Nisqually River. There are also more cascades below the main drop of Pearl Falls.
Pearl Falls was named in 1912 by Albert Henry Barnes, a photographer from Tacoma. He named the falls for the fact that its spray resembled pearls under the right lighting conditions. Pearl Creek presumably took its name from the falls.
On Kautz Creek only a few miles to the east, is Kautz Creek Falls.
- Meany, p. 317
- Swan, Bryan, Goss, Dean. "Pearl Falls". World Waterfall Database. www.worldwaterfalldatabase.com. Retrieved 2009-07-08.
- "Mount Rainier and its Glaciers". National Park Service. www.nps.gov. Retrieved 2009-07-08.
- Map of Pearl Creek (Map). Cartography by NAVTEQ. Google Maps. 2009. Archived from the original on July 24, 2011. Retrieved 2009-07-09.
- Plumb, Gregory A. (2008). "A Waterfall Lover's Guide to the Pacific Northwest (4th Edition): Mount Rainier". www.mymaps.com. Retrieved 2009-07-08.
- Swan, Bryan. "Pearl Falls". Waterfalls of the Pacific Northwest. Retrieved 2009-03-14.
- Meany, Edmond Stephen (1916). Mount Rainier, a Record of Exploration. The MacMillan Company, University of Virginia.
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