San Jacinto Peak (often designated Mount San Jacinto, pronounced or ) is a peak in the San Jacinto Mountains, in Riverside County, California. Lying within Mount San Jacinto State Park it is the highest both in the range and the county, and serves as the southern border of the San Gorgonio Pass. Naturalist John Muir wrote of San Jacinto Peak, The view from San Jacinto is the most sublime spectacle to be found anywhere on this earth!