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Whittier Narrows
The Whittier Narrows is a narrows or water gap in the San Gabriel Valley of Los Angeles County, California, United States, between the Puente Hills to the east and the Montebello Hills to the west. The gap is located at the southern boundary of the San Gabriel Valley, through which the Rio Hondo and the San Gabriel River flow to enter the Los Angeles Basin. The Narrows is located near the convergence of Interstate 605 (the San Gabriel River Freeway) and California State Route 60 (the Pomona Freeway). History The Tongva village of Shevaanga was located in the northern areas of the Whittier Narrows. The first European land exploration of Alta California, the Spanish Portolá expedition, traversed Whittier Narrows on its return journey to San Diego. He wrote that the natives "presented us fish, hare, nuts, pine nuts, acorns, and other seeds prepared after their fashion". On the outbound journey, the party had followed San Jose Creek, reaching the San Gabriel River north of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1987 Whittier Narrows Earthquake
The 1987 Whittier Narrows earthquake occurred in the southern San Gabriel Valley and surrounding communities of Southern California, United States, at on October 1. The moderate magnitude 5.9 blind thrust earthquake was centered several miles north of Whittier in the town of Rosemead, had a relatively shallow depth, and was felt throughout southern California and southern Nevada. Many homes and businesses were affected and many roadways disrupted, mainly in Los Angeles and Orange counties. Damage estimates ranged from $213–358 million, with 200 injuries, three directly related deaths, and five additional fatalities that were associated with the event. Mercalli intensity values for the greater Los Angeles area varied with ranges from VI (''Strong'') to VII (''Very strong''). Only Whittier experienced a level of VIII (''Severe''), the highest experienced during the event, with the historic uptown area suffering the greatest damage. A separate M5.2 strike-slip event occurr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whittier Narrows Dam
Whittier Narrows Dam is a 56-foot (17 m) tall earth dam on the San Gabriel River and the smaller, parallel Rio Hondo. The dam is located, as the name implies, at the Whittier Narrows. It provides water conservation storage and is also the central element of the Los Angeles County Drainage Area (LACDA) flood control system. Its reservoir has a capacity of . The Whittier Narrows are a natural gap in the hills that form the southern boundary of the San Gabriel Valley of Southern California. Both the Rio Hondo, a tributary of the Los Angeles River, and the San Gabriel River flow through this gap and are impounded by the reservoir. The Pomona Freeway (CA-60) passes through the reservoir flood control basin and the San Gabriel River Freeway (I-605) passes along the eastern boundary of the basin. In September 2017, the United States Army Corps of Engineers officials warned local residents that the dam no longer met the agency’s 'tolerable-risk' guidelines and could fail in the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portolá Expedition
thumbnail, 250px, Point of San Francisco Bay Discovery The Portolá expedition was a Spanish voyage of exploration in 1769–1770 that was the first recorded European exploration of the interior of the present-day California. It was led by Gaspar de Portolá, governor of '' Las Californias'', the Spanish colonial province that included California, Baja California, and other parts of present-day Mexico and the United States. The expedition led to the founding of Alta California and contributed to the solidification of Spanish territorial claims in the disputed and unexplored regions along the Pacific coast of North America. Background Although already inhabited by Native Americans, the territory that is now California was claimed by the Spanish Empire in 1542 by right of discovery when Juan Rodríguez Cabrillo explored the Pacific coast. Cabrillo's exploration laid claim to the coastline as far north as forty-two degrees north latitude. This northern limit was later confirmed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tether Car
Tether cars (also commonly known as spindizzies) are model racing cars powered by miniature internal combustion engines and tethered to a central post. Unlike radio control cars, the driver has no remote control over the model's speed or steering. Basics Tether cars are often small (less than 1 meter in length), powered by a non-radio controlled model aeroplane engine (two stroke, glow plug, piston liner, etc.), and run on fuel supplied by a fuel tank within the car. Since 2015, electric motor driven cars, powered by batteries, have also emerged. History Tether cars were developed beginning in the 1920s–1930s and still are built, raced and collected today. First made by hobby craftsmen, tether cars were later produced in small numbers by commercial manufacturers such as Dooling Brothers (California), Dick McCoy (Duro-Matic Products), Garold Frymire (Fryco Engineering) BB Korn, and many others. Original examples of the early cars, made from 1930s to the 1960s, are avidly coll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Angeles County
Los Angeles County, officially the County of Los Angeles and sometimes abbreviated as LA County, is the most populous county in the United States, with 9,663,345 residents estimated in 2023. Its population is greater than that of 40 individual U.S. states. Comprising 88 incorporated cities and 101+ unincorporated areas within a total area of , it is home to more than a quarter of Californians and is one of the most ethnically diverse U.S. counties. The county's seat, Los Angeles, is the second most populous city in the United States, with 3,820,914 residents estimated in 2023. The county is the domicile of the U.S. motion picture industry since the latter's inception in the early 20th century. History Los Angeles County is one of the original counties of California, created at the time of statehood in 1850. The county originally included parts of what are now Kern, San Bernardino, Riverside, Inyo, Tulare, Ventura, and Orange counties. In 1851 and 1852, Los ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whittier Narrows Basin
Whittier may refer to: Places *Whittier, Alaska ** Whittier Airport *Whittier, California, named for John Greenleaf Whittier **Whittier College, a private liberal arts college *** Whittier Law School ** Whittier High School **Whittier Hills, a local name for the western end of the Puente Hills **Whittier Narrows, a water gap between the Puente Hills and the Montebello Hills * Whittier, Denver, a neighborhood in Denver, Colorado * Whittier, Iowa *Whittier, Minneapolis, a neighborhood in Minneapolis, Minnesota *Whittier, North Carolina People with the surname * Charles A. Whittier (1840–1908), American Civil War Union brevet brigadier general * Edward N. Whittier (1840–1902), American soldier * Helen Augusta Whittier (1846–1925), American editor, lecturer, teacher, clubwoman, businesswoman *John Greenleaf Whittier (1807–1892), American poet and abolitionist *Max Whittier (1867–1928), American real estate developer *Nancy Whittier (born 1966), sociologist *Pauline Whittier ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercalli Intensity Scale
The Modified Mercalli intensity scale (MM, MMI, or MCS) measures the effects of an earthquake at a given location. This is in contrast with the seismic magnitude usually reported for an earthquake. Magnitude scales measure the inherent force or strength of an earthquake — an event occurring at greater or lesser depth. (The "" scale is widely used.) The MMI scale measures intensity of shaking, at any particular location, on the surface. It was developed from Giuseppe Mercalli's Mercalli intensity scale of 1902. While shaking experienced at the surface is caused by the seismic energy released by an earthquake, earthquakes differ in how much of their energy is radiated as seismic waves. They also differ in the depth at which they occur; deeper earthquakes have less interaction with the surface, their energy is spread throughout a larger volume, and the energy reaching the surface is spread across a larger area. Shaking intensity is localised. It generally diminishes with dist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greater Los Angeles Area
Greater Los Angeles is the most populous metropolitan area in the U.S. state of California, encompassing five counties in Southern California extending from Ventura County in the west to San Bernardino County and Riverside County in the east, with the city of Los Angeles and Los Angeles County, California, Los Angeles County at its center, and Orange County, California, Orange County to the southeast. The Los Angeles–Long Beach combined statistical area (CSA) covers , making it the largest metropolitan region in the United States by land area. The contiguous urban area is , whereas the remainder mostly consists of mountain and desert areas. With an estimated population of almost 18.6 million (California Department of Finance, 2025), it is the second-largest metropolitan area in the country, behind New York metropolitan area, New York, as well as one of the megacity, largest megacities in the world. In addition to being the nexus of the global entertainment industry, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rancho Paso De Bartolo
Rancho Paso de Bartolo also called Rancho Paso de Bartolo Viejo was a Mexican land grant in present-day Los Angeles County, California given in 1835 by Governor Jose Figueroa to Juan Crispin Perez. The name refers to a San Gabriel River ford called Paso de Bartolo Viejo (Old Bartolo's Crossing). The rancho includes present-day Montebello, Whittier, and Pico Rivera. History Initially property of the San Gabriel Mission, the Rancho Paso de Bartolo land became a part of the original Rancho Los Nietos grant. After an appeal by the mission padres, Rancho Los Nietos was later reduced to , and Rancho Paso de Bartolo was once again a possession of the mission. Following secularization of the missions, Rancho Paso de Bartolo was granted in 1835 to Juan Crispin Perez, a manager at the mission. In 1843, Bernardo Guirado, a worker at the mission, acquired of Paso de Bartolo from Perez. Later, Joaquina Ana Sepulveda, widow of Juan de Jesus Poyorena acquired another . In 1847, Juan C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranchos Of California
In Alta California (now known as California) and Baja California, ranchos were concessions and land grants made by the Viceroyalty of New Spain, Spanish and History of Mexico, Mexican governments from 1775 to 1846. The Spanish concessions of land were made to retired soldiers as an inducement for them to settle in the frontier. These concessions reverted to the Spanish crown upon the death of the recipient. After independence, the Mexican government encouraged settlement in these areas by issuing much larger land grants to both native-born and naturalized Mexican citizens. The grants were usually two or more square league (unit), leagues, or in size. Unlike Spanish Concessions, Mexican land grants provided permanent, unencumbered ownership rights. Most ranchos granted by Mexico were located along the California coast around San Francisco Bay, inland along the Sacramento River, and within the San Joaquin Valley. When the Missions were secularized per the Mexican Secularizatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mission San Gabriel Arcángel
Mission San Gabriel Arcángel () is a Californian mission and historic landmark in San Gabriel, California. It was founded by the Spanish Empire on the Nativity of Mary September 8, 1771, as the fourth of what would become twenty-one Spanish missions in California. San Gabriel Arcángel was named after the Archangel Gabriel and often referred to as the "Godmother of the Pueblo of Los Angeles." The mission was designed by Antonio Cruzado, who gave the building its capped buttresses and the tall narrow windows, which are unique among the missions of the California chain. It was completed in 1805. A large stone cross stands in the center of the ''Campo Santo'' (cemetery), first consecrated in 1778 and then again on January 29, 1939. It serves as the final resting place for some 6,000 neophytes. According to Spanish legend, the founding expedition was confronted by a large group of native Tongva peoples whose intention was to drive the strangers away. One of the priests laid a pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mission Vieja
The Mission Vieja or Misión Vieja or the Old Mission was the first Spanish mission in the San Gabriel Valley. Mission Vieja was built in 1771 by what would become the fathers of the Mission San Gabriel Arcángel. The Mission Vieja site was designated a California Historic Landmark (No.161) on Jan. 11, 1935. The location of Mission Vieja is at what is now the South West corner North San Gabriel Blvd and North Lincoln Ave in Montebello, California. The site has a plaque marker and an El Camino Real Bell. Mission Vieja was the first building in the San Gabriel Valley and Los Angeles County. History Father Juan Crespí picked the spot for Mission Vieja because water was available at what is now called the Whittier Narrows. The place for Mission Vieja was found in the expedition of Portolá in the summer of 1769. Gaspar de Portolá, Miguel Costansó and Father Juan Crespí recorded the expedition. In 1771 the fathers of Pedro Cambon and the fathers of Angel Somera, with a decr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
