Santa Margarita River The Santa Margarita River which with the addition of what is now Temecula Creek , was formerly known as the Temecula River , is a short intermittent river on the Pacific coast of southern California in the United States, approximately long. One of the last free-flowing rivers in southern California, it drains an arid region at the southern end of the Santa Ana Mountains , in the Peninsular Ranges between Los Angeles and San Diego .History The Portolà expedition camped on the river on July 20, 1769 and named it for Saint Margaret of Antioch . A Santa Margarita rancheria is mentioned in 1795 and there is a February 23, 1836 land grant called Santa Margarita y San Onofre. In 1881 the California Southern Railroad followed the route of the river. When the route was completed it had 241 bridges crossed the river. While it was operating, Chinese Americans worked on the railroad. The route along the river was abandoned in 1891. In the early 20th century , following a lawsuit against Vail Ranch in Temecula, water was guaranteed for the river to continue to flow. During much of the 20th century, and into the early 21st century, the river was the subject of a long-running water rights battle between the United States Navy and the Fallbrook Public Utility District . In August 2018, the Fallbrook Public Utility District sold its land on the river, ending its over 60-year plan to place a hydroelectric dam on the river; it will be preserved by The Wildlands Conservancy , which utilized funds from bonds authorized by Proposition 68 to purchase the land.Watershed and course The mainstem of the Santa Margarita River begins at the confluence of Temecula Creek and Murrieta Creek , in southwestern Riverside County , east of Interstate 15 , southeast of Temecula. The river is formed when the two creeks merge. It flows southwest through the Temecula Canyon at the south end of the Santa Ana Mountains. Along its lower the river forms a large floodplain as it crosses Camp Pendleton Marine Corps Base . It enters the Gulf of Santa Catalina on the Pacific approximately northwest of Oceanside . Draining, the Santa Margarita Watershed is the second largest river basin on the Southern California coastal plain . The upper watershed consists of the Murrieta Creek subwatershed and the Temecula Creek subwatershed. Although there are two dams in the upper watershed, both dams must release water that roughly corresponds to natural flows in the tributaries that they are on. As a result, the flow of water in the Santa Margarita River is very close to what it would be in the absence of those two dams. Below the confluence of Murrieta and Temecula Creeks, the primary tributaries of the Santa Margarita River mainstem are Rainbow Creek on the left and Sandia Creek and De Luz Creeks on the right . The two latter creeks drain the Santa Rosa Plateau .Conservation and ecology Approximately of the middle course of the Santa Margarita River in Temecula Canyon are managed by San Diego State University as the Santa Margarita Ecological Reserve , a collaboration of the Bureau of Land Management , California Department of Fish and Wildlife and The Nature Conservancy . The Nature Conservancy has identified and continues to acquire land along the river for conservation. Downstream from the Ecological Preserve the river flows through lands owned by the Fallbrook Public Utility District, and empties into the Ocean through the largely undisturbed lands of Camp Pendleton . Thus the mainstem flows through undeveloped, protected lands. The river has unusual habitats with the upper mainstem one of the few remaining natural gorge rivers in Southern California and the lower mainstem has expansive riparian strips, some up to across. Approximately 70 species of special concern regularly inhabit the watershed, including 30 that are currently protected under the Endangered Species Act . Two federally endangered riparian birds are the least Bell's vireo and the southwestern willow flycatcher ), both of which require riparian habitat for breeding success. Major fishes in the Santa Margarita River include the rainbow trout , arroyo chub , California killifish , striped mullet, longjaw mudsucker, staghorn sculpin. Aquatic and semi-aquatic mammals include California golden beaver , muskrat, raccoon and long-tailed weasel . Contemporary beaver populations survive at the headwaters of the Santa Margarita River at the confluence of Temecula Creek and Murrieta Creek. Major riparian plants include arroyo, black, narrowleaf, Pacific, and red willow ; California sycamore , Fremont cottonwood , mulefat and White alder .
Popular articles Javier Milei - Argentine libertarian economist, author, radio conductor and public speaker sympathetic to the Austrian School of economic thought. He became widely known for his regular ...Jimmy Carter - American politician, philanthropist, and former farmer who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party, he previ...UEFA Euro 2024 - The 2024 UEFA European Football Championship , commonly referred to as UEFA Euro 2024 or simply Euro 2024 , will be the 17th edition of the UEFA European Championship, the quadrennial internationa...Argentina - country located mostly in the southern half of South America. Sharing the bulk of the Southern Cone with Chile to the west, the country is also b...Sam Altman - American entrepreneur, investor, programmer, and blogger. He is the former president of Y Combinator and now the CEO of OpenAI. Early life and education. ...Rosalynn Carter - American who served as First Lady of the United States from 1977 to 1981 as the wife of President Jimmy Carter. For decades, she has been a leading advocate for numerou...Next Argentine presidential election - Next Argentine presidential election - presidential election in Argentina....Popular movies The Hunger Games (film) - 2012 American dystopian action thriller science fiction-adventure film directed by Gary Ross and based on Suzanne Collins’s 2008 novel of the same name. It is the first insta...untitled Captain Marvel sequel - part of Marvel Cinematic Universe....Killers of the Flower Moon (film project) - Killers of the Flower Moon - film project in United States of America. It was presented as drama, detective fiction, thriller. The film project starred Leonardo Dicaprio, Robert De Niro. Director of...Five Nights at Freddy's (film) - Five Nights at Freddy's - film published in 2017 in United States of America. Scenarist of the film - Scott Cawthon....Popular video games Minecraft - sandbox video game developed by Mojang Studios. Created by Markus "Notch" Persson in the Java programming language and released as a public alpha for personal computers in 2...Grand Theft Auto V - 2013 action-adventure game developed by Rockstar North and published by Rockstar Games. It is the first main entry in the Grand Theft Auto series since 2008's Grand Theft ...Roblox - online game platform and game creation system that allows users to program games and play games created by other users. Founded by David Baszucki and Erik Cassel in 2004 and released in...Baldur's Gate III - upcoming role-playing video game developed and published by Larian Studios for Microsoft Windows and the Stadia streaming service. It is the third main game in the Baldur's ...Alan Wake - action-adventure video game developed by Remedy Entertainment and published by Microsoft Studios, released for the Xbox 360 and Microsoft Windows. The story follows best-selling thri...Fortnite - online video game developed by Epic Games and released in 2017. It is available in three distinct game mode versions that otherwise share the same general gameplay and game engine: ...Super Mario RPG - is a role-playing video game developed by Square and published by Nintendo for the Super Nintendo Entertainment System in 1996. It was directed by Yoshihiko Maekawa and Chihiro Fujioka and produced by...Popular books Book of Revelation - The Book of Revelation is the final book of the New Testament, and consequently is also the final book of the Christian Bible. Its title is derived from the first word of the Koine Greek text: apok...Book of Genesis - account of the creation of the world, the early history of humanity, Israel's ancestors and the origins...Gospel of Matthew - The Gospel According to Matthew is the first book of the New Testament and one of the three synoptic gospels. It tells how Israel's Messiah, rejected and executed in Israel, pronounces judgement on ...Michelin Guide - Michelin Guides are a series of guide books published by the French tyre company Michelin for more than a century. The term normally refers to the annually published Michelin Red Guide , the oldest...Psalms - The Book of Psalms , commonly referred to simply as Psalms , the Psalter or "the Psalms", is the first book of the Ketuvim , the third section of the Hebrew Bible, and thus a book of th...Ecclesiastes - Ecclesiastes is one of 24 books of the Tanakh , where it is classified as one of the Ketuvim . Originally written c. 450–200 BCE, it is also among the canonical Wisdom literature of the Old Tes...The 48 Laws of Power - non-fiction book by American author Robert Greene. The book...Popular television series The Crown (TV series) - historical drama web television series about the reign of Queen Elizabeth II, created and principally written by Peter Morgan, and produced by Left Bank Pictures and Sony Pictures Tel...Friends - American sitcom television series, created by David Crane and Marta Kauffman, which aired on NBC from September 22, 1994, to May 6, 2004, lasting ten seasons. With an ensemble cast sta...Young Sheldon - spin-off prequel to The Big Bang Theory and begins with the character Sheldon...Modern Family - American television mockumentary family sitcom created by Christopher Lloyd and Steven Levitan for the American Broadcasting Company. It ran for eleven seasons, from September 23...Loki (TV series) - upcoming American web television miniseries created for Disney+ by Michael Waldron, based on the Marvel Comics character of the same name. It is set in the Marvel Cinematic Universe, shar...Game of Thrones - American fantasy drama television series created by David Benioff and D. B. Weiss for HBO. It...Shameless (American TV series) - American comedy-drama television series developed by John Wells which debuted on Showtime on January 9, 2011. It...
OWIKI.org . Text is available under the Creative Commons Attribution-ShareAlike License.