Thursday, March 23, 2023

Geologist to speak on Wenatchee Pinnacles

Staff Report | February 3, 2023 1:09 PM

WENATCHEE — The Wenatchee Valley Erratics, Ice Age Floods Institute will host a talk Feb. 14 on the Wenatchee Pinnacles, according to a statement from the organization.

The speaker will be Dr. Ralph Dawes, an earth sciences professor at Wenatchee Valley College, who will discuss volcanic activity in the Wenatchee area.

The Wenatchee Pinnacles are volcanic rock protrusions on the hillsides west of Wenatchee, including Saddle Rock, Castle Rock, Old Butte, the Wenatchee Dome and Rooster Comb. Over a century of controversy continues over their rock types, ages, origins, their role in the gold deposits in the Wenatchee Gold Belt mining district and tectonic history of the area, according to the statement.

The program will begin at 7 p.m. at the Wenatchee Valley Museum and Cultural Center, 127 S. Mission Street. Attendees are asked to wear a mask. The program will also be available via Zoom at Both the in-person and online presentations are free and open to the public. More information can be found at

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