Palomar Mountain is a prominent mountain located in San Diego County, California. It is part of the Palomar Mountain Range and reaches an elevation of 6,140 feet. The area is known for its scenic views, diverse wildlife, and recreational opportunities, including hiking and camping. The mountain is home to the famous Palomar Observatory, which houses the Hale Telescope, one of the largest optical telescopes in the world. This observatory plays a significant role in astronomical research and has contributed to many important discoveries in the field of astronomy.