Arroyo Simi

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Arroyo Simi
Arroyo-Simi-Biking-Trail-seen-from-Frontier-Park-Simi-Valley.jpg
Arroyo Simi seen from Frontier Park.
Location
CountryUnited States
Physical characteristics
Source 
  locationCorriganville Park, Simi Valley
Mouth  
  location
Merges with Arroyo Las Posas in Moorpark, discharges to the Pacific by Mugu Lagoon
Length19 mi (31 km) [1]
Basin features
River system Calleguas Creek
Tributaries 
  leftRunkle Canyon- and Bus Canyon Creeks, and Erringer Drain
  rightAaamos Canyon-, Dry Canyon-, Tapo Canyon-, Las Llajas Canyon-, and White Oak Creeks, and North Simi Drain

The Arroyo Simi (Spanish for "Small Stream of Simi", [2] sometimes also referred to as Simi Creek) [3] is a 19-mile (31 km) [1] westwards-running [4] creek, running from the city of Simi Valley and crosses the valley from east to west, before entering the city of Moorpark. [5] It originates at Corriganville Park by the Santa Susana Pass, [6] and streams westwards into Moorpark where it merges with Arroyo Las Posas by Hitch Road. [1] It extends for 12 miles (19 km) through the Simi Valley, [7] and leaves the city limits by Oak Park at the western end Simi Valley, and continues for seven miles in Moorpark. It is a tributary to the Calleguas Creek, which enters the Pacific Ocean by its estuary at Mugu Lagoon by Naval Air Station Point Mugu. [8] Besides an arroyo, it has been described as a channel, waterway, [9] river, drain, [10] wash, [11] and stream. Arroyo Simi drains an area of 343 square miles in southern Ventura County. [4] In its natural state, it is an ephemeral creek, which is only seasonally filled during winter time and periods of heavy rain. Today it is for the most part a concrete lined water drain that flows year round. [3] [4] Tributaries to the Arroyo Simi includes Aaamos Canyon-, Sycamore-, Dry Canyon-, Tapo Canyon-, Las Llajas Canyon-, White Oak-, Runkle Canyon-, and Bus Canyon Creeks, as well as the Erringer Road- and North Simi Drains. [12]

Arroyo Simi Greenway is an ongoing construction project by the City of Simi Valley in order to increase the recreational use of its river parkways. The project includes new paved hiking- and biking trails along the Arroyo Simi, exhibit signs, sixteen new trail entries, and more. [13] [14] [15] The area is administrated as the Arroyo Simi Bike Path by the Rancho Simi Recreation and Park District (RSRPD). [16] It is home to native flora, [17] fish, and avifauna. It is home to fish species such as the brown bullhead, green sunfish, bluntnose minnow, and mosquitofish. [18] It is an important habitat for various species of freshwater-nesting birds in the Simi Valley. Some of the species include the great blue heron, white-faced ibis, black-crowned night heron, green heron, black-necked stilt, great egret, snowy egret, belted kingfisher, black phoebe, killdeer, common yellowthroat, greater yellowlegs, American coot, and mallard. [19]

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Alamitos Creek

Alamitos Creek or Los Alamitos Creek is a 7.7-mile-long (12.4 km) creek in San Jose, California, which becomes the Guadalupe River when it exits Lake Almaden and joins Guadalupe Creek. Los Alamitos Creek is located in Almaden Valley and originates from the Los Capitancillos Ridge and the Santa Cruz Mountains. This creek flows through the Valley's Guadalupe Watershed, which is owned by the Santa Clara Valley Water District. The creek flows in a generally northwesterly direction after rounding the Los Capitancillos Ridge and the town of New Almaden, in the southwest corner, before ambling along the Santa Teresa Hills on northeast side of the Almaden Valley. Its environment has some relatively undisturbed areas and considerable lengths of suburban residential character. Originally called Arroyo de los Alamitos, the creek's name is derived from "little poplar", "alamo" being the Spanish word for "poplar" or "cottonwood".

Chatsworth Nature Preserve

The Chatsworth Nature Preserve (CNP) is a 1,325-acre (536 ha) open-space preserve located in the northwest corner of the San Fernando Valley in Los Angeles, California, United States. The preserve contains oak woodlands, savanna, riparian areas, grassland, vernal pools, and an Ecology Pond, all of which support more than 200 bird species and numerous mammals, amphibians and reptiles.

Las Llajas Canyon

Las Llajas Canyon within the Marr Ranch Parkland contains the 1920s residential subdivision called Marrland and the surrounding open space area administrated by the Rancho Simi Recreation and Park District (RSRPD) and is located in northeastern Simi Valley, CA. The Las Llajas and nearby Chivo Canyons are parts of the Marr Ranch Parkland, Marrland residential subdivision, and are situated at the foothills on the south side of the Santa Susana Mountains. It contains panoramic mountain and city views, large oak trees, stream and stream bed, rock formations, barren hillsides and rolling hills. The canyon is visited for recreational activities as rock climbing, biking, hiking, wildlife observation, photography, running, picnicking, and horseback riding. It has smooth footing with many sandy sections and a green creek-bed. It also includes a 46-acre dam that was intended for creation a recreational lake in the 1970s. Now called the Las Llajas Canyon Debris Basin.

Tierra Rejada Park

Tierra Rejada Park is a 150-acre park located in the northern Simi Hills foothills, in southwestern Simi Valley city near Moorpark, in Ventura County, California.

Bridle Path is a community in the southwestern area of the City of Simi Valley, in Ventura County, Southern California.

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Arroyo Conejo is the longest creek in the Conejo Valley, sprawling over the cities of Thousand Oaks and Camarillo, and the communities of Newbury Park, Casa Conejo and Santa Rosa Valley. Arroyo Conejo is the primary drainage for the City of Thousand Oaks. Its watershed covers 57 square miles (150 km2) of which 43 square miles (110 km2) are in the Conejo Valley and 14 square miles (36 km2) in the Santa Rosa Valley.

Hill Canyon

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Ventu Park Open Space

Ventu Park Open Space is a 141-acre open space area in Newbury Park, California. Its primary features are the Rosewood Trail leading to Angel Vista, a 1,603 ft peak in the Santa Monica Mountains. Parking for the Rosewood Trail is located at the Stagecoach Inn Park, across Lynn Road from the primary trailhead. The Rosewood Trail begins with oak woodland and crosses a creek at the canyon floor, before climbing up towards the steep Angel Vista Point. There are 360-degree panoramic views of the Conejo Valley, the Oxnard Plain, the California Channel Islands, Pacific Ocean, Point Mugu, Hidden Valley, as well as the Santa Monica-, Santa Susana- and Topa Topa Mountains.

Calleguas Creek is the terminus of a river system in Ventura County, California. It drains the Calleguas Creek Watershed, an area 30 miles long and 14 miles wide, which includes Simi Valley, Moorpark, Camarillo and a large portion of Thousand Oaks. Tributaries include Arroyo Simi, Arroyo Santa Rosa, Revolon Slough and Arroyo Conejo. It discharges into the Pacific Ocean, the Santa Barbara Channel, at Mugu Lagoon on Naval Base Ventura County, just north of Point Mugu, where the Santa Monica Mountains meet the ocean, marking the southern/eastern boundary of the Oxnard Plain.

References

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  2. Darton, Nelson Horatio (1915). Guidebook of the Western United States: Part C. The Santa Fe Route with a Side Trip to the Grand Canyon of the Colorado, Parts 3–4. U.S. Government Printing Office by the U.S. Department of the Interior. Page 102.
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  4. 1 2 3 http://www.moorparkca.gov/DocumentCenter/View/3954
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  8. http://www.nwrc.usgs.gov/techrpt/85-7-15.pdf
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  10. "One Pragmatic Path : Aesthetics of Arroyo Simi Bicycle Route Prove Secondary to Its Utility as a Way Around Town – latimes". Articles.latimes.com. 1992-07-10. Retrieved 2015-06-08.
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  14. http://www.simivalley.org/Modules/ShowDocument.aspx?…4618%5B%5D
  15. Rachel McGrath (2014-07-02). "Arroyo Simi Greenway taking shape". VC-Star. Retrieved 2015-06-08.
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  17. "Archived copy" (PDF). Archived from the original (PDF) on 2015-07-25. Retrieved 2015-06-08.CS1 maint: archived copy as title (link)
  18. (Page 30). Archived January 23, 2016, at the Wayback Machine
  19. (Pages 30–33). Archived January 23, 2016, at the Wayback Machine