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The Verdugo Mountains, also known as the Verdugo Hills or simply The Verdugos, are a small, rugged mountain range of the Transverse Ranges system in Los Angeles County, California. Located just south of the western San Gabriel Mountains, the Verdugo Mountains region incorporates the cities of Burbank, Glendale, Pasadena, and La Cañada Flintridge; the unincorporated communities of Altadena and La Crescenta-Montrose; as well as the City of Los Angeles neighborhood of Sunland-Tujunga. Surrounded entirely by urban development, the Verdugo Mountains represent an isolated wildlife island and are in large part under public ownership in the form of undeveloped parkland. The mountains are used primarily for recreation in the form of hiking and mountain biking, and as the site of communications installations on the highest peaks. The mountains arise directly from the eastern floor of the San Fernando Valley, exaggerating their height from some vantages. Beginning with foothills, they rapidly rise to rugged sections, with the highest peaks topping 3,000'. Geography The northwest-trending range is approximately 8 miles (13 km) long by 3.25 miles (5.23 km) wide, and roughly parallels the southern front of the San Gabriel Mountains at a distance of 1 mile (1.6 km) to 2 miles (3.2 km), with the Crescenta Valley lying between the two. The southern front of the range forms part of the northeastern boundary of the San Fernando Valley; at their southeastern end the Verdugo Mountains are separated from the San Rafael Hills by the Verdugo Wash. The highest summit is the informally named Verdugo Peak (3,126 feet (953 m)), located near the center of the range and rising to approximately 2,200 feet (670 m) above its southern base. Other peaks include Tongva Peak (2,656 feet), recently named in honor of the Tongva (Gabrielino) people, the original inhabitants of much of the Los Angeles Basin, Santa Monica Mountains, and San Gabriel Valley areas. Other informally named peaks are Mount La Tuna on the north end and Mount Thom on the south end of the range. With the exception of Mount La Tuna, all these summits, as well as several others, are occupied by communications towers. The Verdugo Mountains lie within the corporate boundaries of the cities of Glendale, Burbank, and Los Angeles. The neighborhood of La Crescenta, most of which lies within Glendale, is adjacent to the range's northern end, as are the Los Angeles neighborhoods of Tujunga, Sunland, Shadow Hills, and Sun Valley (the last of which includes La Tuna Canyon). Geology The Verdugo Mountains consist of an east-west-trending antiformal fault block, bounded on the south by the Verdugo Fault, a north-dipping reverse fault, and on the north by the Sierra Madre thrust fault near the front of the San Gabriel Mountains, thus including the sediment-covered Crescenta Valley within the Verdugo Mountains Block. The Verdugo Fault lies slightly south of the topographic range front and is completely covered by sediments. The rocks within the Verdugo Mountains block are almost entirely igneous and metamorphic similar to the crystalline basement rocks exposed to the north in that portion of the San Gabriel Mountains south of the San Gabriel Fault. These consist of gneiss, and gneissic diorite and quartz diorite, intruded by irregular bodies of equigranular granitic rocks, predominantly quartz diorite and granodiorite, with accompanying pegmatite and aplite. Exposed rocks in the Shadow Hills neighborhood at the extreme northwestern end of the Verdugos are typically marine sedimentary rocks of Miocene age, predominantly sandstone and shale. The Verdugo Mountains are part of the western Transverse Ranges, which have risen in the last 7 million years as the result of contractional deformation resulting from transpressional motion and rotation of crustal blocks in the "Big Bend" region of the San Andreas Fault. The amount of crustal shortening since the beginning of the Pliocene has been estimated to be on the order of 7 kilometers (4.3 mi). The Verdugo fault and Sierra Madre thrust are part of a complex system of faults that accommodate some of this shortening and generally become younger to the south, with the Verdugo Fault possibly being the youngest member of this system and forming the current boundary between this portion of the western Transverse Ranges and the Los Angeles basin. Uplift along the Verdugo fault may total approximately 2.5 km (1.6 mi), at a minimum rate of 1.1 km (0.68 mi) per million years since 2.3 million years ago, moving the crystalline rocks of the Verdugo Mountains up and over younger Tertiary and Quaternary sediments to the south. The Verdugo Mountains are, therefore, young and rapidly rising, reflected in their steep topography and rapid rates of erosion. Municipalities and neighborhoods Incorporated cities (independent) Glendale Pasadena La Cañada Flintridge Burbank Unincorporated communities Altadena La Crescenta-Montrose City of Los Angeles neighborhoods of The Verdugos Sunland-Tujunga Flora, fauna and climate The Verdugo Mountains lie almost entirely within the chaparral plant community, as defined by Munz and later authors, including Sawyer et al. This dense, shrub-dominated community of the California chaparral and woodlands is more highly developed on the north-facing slopes than on the drier, hotter south-facing slopes. Among the shrub species that characterize this community, prominent in the Verdugos are laurel sumac (Malosma laurina), toyon (Heteromeles arbutifolia), poison oak (Toxicodendron diversilobum), chamise (Adenostoma fasciculatum) and two species of California-lilac (Ceanothus crassifolius and Ceanothus oliganthus). Native trees are restricted to protected canyons, especially on the shadier north slope of the range, where soil moisture levels are higher. Coast live oak (Quercus agrifolia), California bay laurel (Umbellularia californica), California sycamore (Platanus racemosa), California walnut (Juglans californica), and several species of willow (Salix spp.) are the most common native trees. Non-native trees, particularly pines (Pinus spp.), cypress (Cupressus spp.), locust (Robinia pseudoacacia), and Australian eucalyptus (Eucalyptus spp.) have been planted locally along the fire roads and, most notably, in the Fire Warden's Grove, established in the wake of a wildfire in 1927. Except for a tenuous link to the large wild area in the San Gabriel Mountains through Big Tujunga Wash at their northwestern end, the Verdugo Mountains are an urban wildlife island completely surrounded by development. Among the large mammals, coyote (Canis latrans) and mule deer (Odocoileus hemionus) are the most common; mountain lions (Puma concolor) and black bears (Ursus americanus) have occasionally been reported. The many rodent species support a population of western rattlesnakes (Crotalus viridis). Of the numerous bird species present, the most characteristic of the chaparral here,.... Discover the Victor Verdugo popular books. Find the top 100 most popular Victor Verdugo books.