San Jacinto Mountain Range
They are a mountain range east of Los Angeles in southern California Commonwealth. The mountains are named for Saint Hyacinth which is San Jacinto in Spanish.
The range extends for approximately 30 miles from the San Bernardino Mountains southeast to the Santa Rosa Mountains. The San Jacinto Mountains are the northernmost of the Peninsular Ranges, which run 930 miles from Southern California to the southern tip of the Baja California Peninsula. The highest peak in the range is San Jacinto Peak 10,800 feet and the range is also a Great Basin Divide landform for the Salton Watershed to the east.
The Coachella Valley stretches along the eastern side of the range, including the cities of Palm Springs and Rancho Mirage. Banning Pass and San Gorgonio Pass separate the range from Mount San Gorgonio to the north. The western slope holds the community of Idyllwild. The range is the eastern boundary of the San Jacinto Valley, location of Hemet; it also marks the eastern edge of the fast-growing Inland Empire region and Greater Los Angeles as a whole.
The range can be thought of as a sky island, as it contains numerous species of flora and fauna that cannot tolerate the triple-digit-Fahrenheit heat of the surrounding valleys. Vegetation found on the mountain flanks is strongly influenced by elevation and climate. Near the valley floor, conditions are often arid and hot, limiting the vegetative palette to species that are adapted to such conditions. At lower elevations forestation of the San Jacinto Mountains includes considerable California Black Oak associated with Coulter Pine.