Mount Shasta, a 14,179-foot (4,322 m), is the second-highest peak in the Cascade Range and the fifth highest peak in California. It is a member in the Cascade Volcanic Arc and is located in Siskiyou County. Physically unconnected to any nearby mountain, and rising abruptly from miles of level ground which encircle it, Mount Shasta stands some 10,000 feet (3,000 m) above the surrounding area. [Wikepedia]
On a good day, Mt Shasta is visible from more than 50+ miles away.