And thanks to the Cowiche Canyon Conservancy, an area once deemed “absolutely worthless” has become one of the Valley’s ...

the academics write that “the pyramid’s core consists of meticulously sculpted massive andesite lava” and that the “oldest construction” element of the pyramid “likely originated as a ...

According to the USGS (2003), the oldest lava flows in the park emanated from Mt. Scott around 400,000 years ago. These fine textured lavas consist of dacite and andesite. (At the lake level, there is ...