Laguna Canyon (also called CaÃÆ' Â ± there de las Lagunas , meaning "Canyon Lake" in Spanish) is the name of the canyon that cuts off the San Joaquin Hill in southern Orange County, California, in the United States, just south of Irvine. The canyon flows from the northeast to the southwest, and is dried on the north side by the tributary of San Diego Creek and in the south by Laguna Canyon Creek. It's deeper and more rugged in the southwest corner near Laguna Beach.
Geologically, the canyon probably originated millions of years ago as a result of San Diego Creek cutting off the San Joaquin Hill. The urge to divert the flow to its current path, leaving the Canyon Lagoon as a wind gap. California State Route 133 runs the entire length of the canyon that connects Laguna Beach and Irvine, while California State Route 73 crosses, running southeast-northwest. The majority of these gorges are located in Taman Padang Rimba Laguna Coast; Small portions are part of Aliso and Wood Canyons Wilderness Park and the city of Irvine, Laguna Beach, Laguna Woods and Aliso Viejo.
Video Laguna Canyon
Geography and geology Edit
The Laguna Canyon is about 8 miles (13 km) long and 1 mile (1.6 km) wide at the widest points. The city of Irvine is located in the northeast, Lake Forest and Aliso Viejo in the east, the undeveloped Bukit San Joaquin in the west, and Laguna Beach to the south. The canyon drainage division near the northern end separates the Canyon Creek Lagoon from the San Diego Creek basin.
State Route 133, called Laguna Canyon Road, winds through Laguna Canyon for the entire length of the ravine. California State Route 73 splits two canyons in the east-west. The lower part of the canyon is part of the Laguna Coast Desert, while the upper part also has some small preserved wilderness. The upper part contains Lake Laguna, a series of small natural lakes formed by ground water rising along the local fault line, which is the nickname of the canyon. Part of the lower canyon within the Laguna Beach city limits is highly developed. The northernmost extreme of the canyon is located near a residential area adjacent to Interstate 405.
The canyon was most likely formed by San Diego Creek cutting the San Joaquin Hill up over a span of about 1.22 million years. But at some point, the creek changed direction, and the water gap that formed was fortified by mountains and became a separate river basin. The split drainage gradient separates the Canyon Lagoon and the very small San Diego Creek watershed, allowing for the use of the modern canyon as a transportation route.
Little River Edit
The Canyon Creek lagoon begins as a small tributary that flows on the western side of the valley towards the canyon. Briefly the culverts where it crosses under the lagoon of Canyon Road, but most of the upper trails are flowing in the natural channel. Immediately past Lake Laguna and receive Little Sycamore Canyon from the right; This creek flows a narrow side canyon that stretches for about 2 miles (3.2 km) to the east. The creek continues down south, and then passes down Laguna Canyon Rd. again and received Camarillo Canyon, a short and steep stream, from the right.
The river then runs southward under the twin bridge of the California State Route 73 and enters the underground culverts below the onramp. While in the culverts, the Laurel Canyon (where the 100-foot (30 m) waterfall and the larger Willow Canyon join from the right, then about 0.5 miles (0.80 km) later, the river returns from underground and flowing in a teary trough for the next few miles, receiving her main creek, El Toro Creek, from the left El Toro Creek, following El Toro Road for the most part, flowed the parts of Laguna Hills and Aliso Viejo before emptying the Canyon Creek Lagoon.
The river turned sharply to the west and then back south, then shortly thereafter, forced into the culvert of concrete boxes that carried it through downtown Laguna Beach (This stretch was also known as Broadway Creek.) It was then completely diverted underground and its channels wind down to a dump on Main Beach, one of the most popular beaches in Laguna Beach.
Modify Edit
Laguna Canyon and its tributaries have received some modifications to flood control. These include the basin debris in the mouth of almost every major tributary, a flooded or unlined strip of flow control lines, and other structures. The hollow debris, sometimes called retention basin , is a circular depression built by the Orange County Flood Control Division to slow down banjir bandang. The upper Laguna Canyon area has several flood control channels and the lower tributaries are completely encased in one; it started as a riprap channel with an unlined base, which transitions into concrete culverts. These improvements help protect infrastructure in the canyon from storms and landslide damage.
There is little development in the main canyon, although the area of ​​El Toro Creek is the main settlement. There are also some residential and commercial development downstream of State Route 73. The concrete ducts in this area are small and small for large floods, which caused it to overflow in the late 1990s and again in 2010.
Maps Laguna Canyon
Wildlife Edit
Animal Edit
The Laguna Canyon area supports a variety of native California Southern wildlife, including large mammals such as mountain lions, bobcats, coyotes and mule deer. Like Aliso and Wood Canyons Regional Park in the south, this gorge supports more than a hundred species of birds. Several endangered species include California gnatcatcher, wren cactus, and orange-throat whiptail. With the exception of Lake Laguna, this canyon lacks fish habitat, and riparian habitats are rare because local tributaries have only a seasonal stream.
Plants Edit
The dominant vegetation cover of the coastal sage shrub usually cycles around 25 years, with the peak of biodiversity reaching about 10 years after the beginning of the new 25 year period. Such periods are usually separated by forest fires, which clear the dead or dying vegetation and leave vacant land for new growth. The Valley is one of the last sanctuaries for many native Southern California plants. About a hundred species of plants, most native to California, are found in Laurel and Willow Canyons alone. These include monkey flowers, goldenrod, and bushes.
Recreation Edit
The lagoon of the Canyon forms the central part of the approximately 17,500-acre (71Ã,km 2 ) path of wilderness preservation that flows to the northeast-southwest along the Pacific coast. Most of the valleys are covered by Laguna Coast Wilderness Park, which is 7,000 hectares (28 km 2 ). It is bordered on the south by Aliso and the Woodlands Regional Park, and to the north by Crystal Cove State Park. These parks are managed by the County of Orange and the California Department of Fish and Game, while the Laguna Coast is also owned by the City of Laguna Beach. Although there is no trace that follows the main canyon (as it passes by State Route 133), there are many small trails, mostly hiking, leading to a narrow side valley, as well as the path that surrounds Laguna Lakes. Several connecting routes head east-south towards Aliso and Wood Canyons, providing access between two DAS.
History Edit
Located north of Aliso Canyon, the Laguna Canyon area lies within the boundary of the Tongva tribe, a group of Native Americans whose territory flourishes from north-central Orange County past the San Gabriel River and into the Los Angeles Valley. Aliso Creek, which borders the waters of the Canyon Lagoon to the east, forms a tribal boundary between Tongva and Acjachemen.
Canyon Creek lagoon is a seasonal stream but Laguna Lakes, formed by springs arising from a small fault zone, live year-round. A native American road ran through the canyon to the current Laguna Beach area, where they fished and collected abalone and limpet. The Tongva live in the villages of 50-100 people, in huts made of brushes and tules on a wooden frame. When the Spanish explorers arrived in the mid-18th century, they named the canyon "CaÃÆ' Â ± there de las Lagunas", referring to Lake Laguna. The land grant called La Bolsa de San JoaquÃÆ'n occupied the canyon area until the 19th century. In 1905, Laguna Beach began to draw city water from the springs at Laguna Canyon.
Before the Canyon Lagoon became a desert park, housing construction was proposed to be built in and around the canyon, while called "Laurel Lagoon". The 2,150-acre community (8.7Ã, km 2 ), which proposed containing 3,200 housing units and businesses, was canceled in the 1990s after the City of Laguna Beach purchased four packages to provide space for the desert park, while The city of Irvine bought one, and Laguna Coast Wilderness Park was opened and dedicated in 1993. Sometimes, the park system (adjacent to Aliso/Wood Canyons Regional Park) is supplemented by an empty land donation.
The proposal to stop the construction was supported by a crowd of eight to eleven thousand on November 11, 1989. This large group gathered in downtown Laguna Beach and marched to the "The Tell" photography mural, created by the Laguna Canyon Project, in the Sycamore Hills area of ​​Laguna Canyon. This protest is called "Walk to Save Laguna Canyon". Several years later, two to three thousand people gathered to protest against the construction of California State Route 73 (which would cross the canyon), but the highway was finally built.
In 1993, large fires burned more than 16,000 acres (65º, km <2>) in Laguna Canyon and Laguna Beach, and ranked behind Santa Ana Canyon 1948 fire as one of the worst fires in the history of Orange County. The fire was partly due to the powerful Santa Ana Wind, which caused a fire that rose up to 200 feet (61 m) high.
Future Edit
The canyon is one of the wilderness remaining in Orange County in a preserved strip along the San Joaquin Hills about 20 miles (32 km) long and 8 miles (13 km) wide. Recently, State Route 133 between the 405 and 73 highways has been expanded into four lanes of the original two lines, and many of the original roads in the middle of the canyon have been destroyed and replanted. New roads are built further from the river bed to reduce environmental impact. The northernmost extreme of the canyon is being developed into a residential area of ​​590 houses, called Laguna Crossing, the first stage opened in 2013.
Other parts of Laguna Canyon have been influenced by development. The last 3 miles (4.8 km) of the gorge, closest to downtown Laguna Beach, is an urban area, consisting of the Laguna College of Art and Design, the places of the Sawdust Art Festival and other places. Most of the remaining wilderness is now found in the side valley. Urban runoff has resulted in bacterial contamination downstream at Main Beach in Laguna Beach. Some organizations are now dedicated to preserving the wild areas remaining in the canyon, including the Laguna Canyon Foundation.
See also Edit
- Biology of Aliso and Regional Parks of the Chasm
- Wildlife from Aliso Creek
- Mark Chamberlain (photographer)
References Edit
External links Edit
- Laguna Canyon Foundation
- Laguna Coast Wilderness Park
- Introduction to Canyon Waters Lagoon
- Orange County Watershed Information
Source of the article : Wikipedia
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