No, Yosemite is not a volcano; it is a national park located in the western Sierra Nevada mountains of California, known for its stunning granite cliffs, waterfalls, and diverse ecosystems.
However, the geology of the region does have a volcanic history. The granite cliffs, such as El Capitan and Half Dome, were formed from the slow cooling of molten rock deep underground, which is a process different from volcanic activity. The park’s features were shaped by glacial activity during the last Ice Age, carving out valleys and depositing various rock formations.
It’s important to note that there are areas in the Sierra Nevada that are volcanic, such as Mono Lake, but Yosemite itself showcases the results of glacial and geological processes rather than being a product of volcanic eruptions.