- Tyson Wash
Tyson Wash is one of the larger eastern-bank dry washes that enter the
Colorado River in western Arizona. It is the southwest drainage of a pair of drainages, the other being the "Bouse Wash Drainage". They are in the Lower Colorado River Valley, south of Parker, Arizona and both enter the region east of the Colorado River, with noColorado River confluence; they both end at regions on the eastern border of theColorado River Indian Reservation located along the Colorado River in theParker Valley . Both drainages enter upper regions of the "Imperial Reservoir Drainage".Tyson Wash description
While northeasterly, the Bouse Wash drainage borders the "
Bill Williams River Drainage", (almost ade facto separation line of the Mojave Desert northwest and the Sonoran Desert south and east), the Tyson Wash drains the extensive 75-mile (120 km) long north-southLa Posa Plain . Quartzsite, Arizona and four mountain ranges to the south, including western regions of theKofa National Wildlife Refuge , all drain north into Tyson Wash. The Tyson Wash forms awater divide on the south as theCastle Dome Wash and Plain drain to the south and southwest.Tyson Wash drains northward on the western perimeter of the La Posa Plain; the
Trigo Mountains are southwest, and in the north the wash turns west around the north end of theDome Rock Mountains . As proof of the aridity of this stretch of the westernSonoran Desert , the main transportation route north-south on the La Posa Plain is a stretch of U.S. Route 95-State Route 95 which makes no turns, even minor, for convert|75|mi|km|0.Quartzsite and Granite Mountain on the Wash
The community of Quartzsite is located on the central-north section of the wash and east-central
Dome Rock Mountains ; Granite Mountain south of Interstate 10 and part of southwest Quartzsite, has drainage washes feeding into Quartzsite proper. The entire Quatzsite region is a winter visitor region noted for its winter population ofrecreational vehicle s and for itsrockhound ing activities because of old mines, mineralized mountains, and mild winter temperatures. An annualbazaar is held focussed partially on Rocks and Minerals. Numerous access routes to the wash and mountain areas surround Quartzsite.Northern Tyson Wash access
The northern region of the wash is accessed by dirt road west of AZ Route 95; the route is about convert|25|mi|km|0 long and ends at the southern area of the Colorado River Indian Reservation, convert|35|mi|km|0 north of Ehrenberg, Arizona. This access route off AZ Route 95 is convert|2.5|mi|km|0 south of an intersection to a paved route northeasterly to Bouse through the
Plomosa Mountains ; that paved route is called Plomosa Raad-(Bouse-Quartzsite Road), and ends at Bouse, theBouse Wash , and the north end of theRanegras Plain .External links
* [http://cfpub.epa.gov/surf/huc.cfm?huc_code=15030106 Tyson Wash Watershed Map]
* [http://cfpub.epa.gov/surf/huc.cfm?huc_code=15030105 Bouse Wash Watershed Map]
* [http://cfpub.epa.gov/surf/huc.cfm?huc_code=15030104 Imperial Reservoir Watershed Map]
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