Suds and Mud in Soap Lake, Washington

No one really knows what causes suds to appear along the shore of Soap Lake after a strong wind blows for several hours. The suds often pile up over a foot high in places, or it can appear as a narrow ridge of white froth along the shore. Close observation over the years reveals that there is some correlation between the temperature of the wind and the water. During the hot summer months, when the surface temperature of the water is high, there are fewer episodes of suds on the shoreline. Cooler wind that blows during the spring and fall appears to create suds along the shores of the lake more frequently. Suds along the shore are clearly visible along highway 17 North, which parallels the lake.

There are 23 different minerals in Soap Lake Water.

Soap Lake mud is thick and creamy, like the softest cold cream. It is jet black and has an almost jelly like feel to it as you hold it in your hand. It has a pungent, organic odor. It dries to a deep grey, green color and washes off in Soap Lake or fresh water. When dry, it flakes off as extremely fine-grained powder. It doesn’t stain clothing. It can be found at several locations around the lake, under two to four feet of water. Many residents and regular visitors know where to find the mud. Hotel operators and volunteers at the Visitor’s Center can be helpful in obtaining mud for those interested.

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	History Buffs
	If you like history and want to learn more about this incredible mineral sea in the heart of Washington, order the Soap Lake documentary: Dirt Roads, Beachscapes and Bygone Days: A Window to Soap Lake’s Past
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Contact: soapy@soaplakewa.com