The wash flows northwesterly with the alignment of the northwest-southeast trending mountains and valleys of the former Basin and Range mountain ranges. The washes and arroyos combine into the San Cristobal Wash which enters the San Cristobal Valley at the south. The wash ends its watercourse one third of the way into the valley, and disappears about 8 miles (13km) south of the Gila River. The majority of the wash lies in the southeast of Yuma County, but southeast drainages from the Growler Valley area drain extreme western Pima County.
Southern portions of the San Cristobal Wash extend to the southern ends of two valleys and the drainage bifurcates, draining the Mohawk Valley southeasterly on the west and the southern-(south-flowing into headwaters of San Cristobal Wash), Growler Valley, on the east.
Drainages going northwest combine from the southeast into the San Cristobal Wash: the Growler Wash from the Growler Valley east of the Granite Mountains (Arizona), and east of there the Daniels Arroyo, which flows adjacent to the Tenmile Wash Drainage in the Childs Valley of southern Arizona, Pima County. The Tenmile Wash Drainage is the next upstream drainage on the south, to the Gila River-(before the Gila makes its turn from the north).
Downstream, the next and last watershed drainage for the Gila River is the Lower Gila Watershed. The southeast border of the San Cristobal drainage is the Tule Desert Drainage, where the Tule Desert (Arizona) has a drainage south into Sonora, Mexico.
The Mohave Valley is a valley located mostly on the east shore of the south-flowing Colorado River in northwest Arizona. The valley extends into California's San Bernardino County; the northern side of the valley extends into extreme southeast Clark County, Nevada. The main part of the valley lies in southwest Mohave County, Arizona and is at the intersection of the southeast Mojave and northwest Sonoran deserts.
The Muggins Mountains is a mountain range in southwest Arizona east of Yuma, Arizona, northeast of the Gila Mountains, and east of the Laguna Mountains. The Castle Dome Mountains lie to the northeast across the broad Castle Dome Plain. The Muggins Mountains Wilderness occupies the southwest portion of the range.
The Valley and range sequence-Southern Yuma County is a 3-Valley sequence of NW–by–SE trending block faulted valleys and mountains. About eleven major mountain ranges connect to each other in four,, mountain sequences.
The San Cristobal Valley is a valley in the lower regions of the western Gila River Valley in southwestern Arizona in the western Sonoran Desert. The San Cristobal Wash drains northwest, but exists only in the southern half of the valley.
The Granite Mountains of Arizona is a mountain range in the Sonoran Desert of southern Arizona. It is located in extreme western Pima County, Arizona, bordering southeast Yuma County.
The Sentinel Plain is an extensive northwest-southeast trending plain south of the Gila River Valley in southwestern Arizona, USA. It is centered on the community of Sentinel, Arizona located on Interstate 8, approximately 35 miles (56 km) west of Gila Bend.
The Growler Mountains is a 23-mile, (37-km) long north-south trending mountain range of far western Pima County, Arizona that lies 12 miles (19 km) west of Ajo, Arizona. This desert region of southern Arizona lies in the north and central Sonoran Desert, and is one of the drier desert areas of North America.
The Growler Valley is a valley of south-central Arizona west of Ajo, Arizona.
Tyson Wash is one of the larger eastern-bank dry washes that enter the Colorado River in western Arizona. It drains the La Posa Plain south-to-north and is also coincident with the Plain,.
The Little Ajo Mountains is a mountain range in southern Arizona, in extreme western Pima County, Arizona. The city of Ajo sits on the northeast of this small mountain range. Both the mountain range and city take their name from the Spanish word for garlic.
Ajo Peak is a mountain peak in southern Arizona, in the north-and-east Sonoran Desert. Two peaks are nearby, Cardigan Peak at 2,922 feet (891 m) and North Ajo Peak 2,776 feet (846 m).
Tenmile Wash is an ephemeral wash and watercourse about 85 miles (137 km) long in the northern Sonoran Desert of south-central Arizona. It forms the eastern drainage of a two drainage system of dry washes into the Gila River Valley; both flow northwesterly, and the western drainage is the San Cristobal Wash Drainage of approximately the same length.
The Sacramento Wash is a major drainage of northwest Arizona in Mohave County. The wash is east of the Black Canyon of the Colorado and drains into the south-flowing Colorado River 45 mi south of Lake Mohave, and 90 mi south of Hoover Dam at Lake Mead. The wash outfall is in the center-south of the Havasu-Mohave Lakes Watershed. An equivalent wash drains to the west of the Colorado River and the Black Canyon, draining southeast Nevada and a small part of California, the Piute Wash of the Piute Valley. The Piute Wash outfall is upstream of the Sacramento's outfall by about 15 miles.
The Piute Wash of extreme southeastern Nevada and northeast San Bernardino County California is the south-flowing drainage of the Piute Valley. The wash and valley are located northwest of Needles, California.
The Childs Valley is a valley in the Sonoran Desert of south-central Arizona northwest of Ajo. Upstream sections are located in far western Pima County; downstream it merges into the Gila River Valley in southwestern Maricopa County. Upstream, the valley lies northeast and parallel to the Growler Valley and Growler Mountains.
The Park Valley of Arizona is a small, northwest by southeast trending valley centered on the Gila River in central-east Yuma County. The southeast border of the valley is the northern Sentinel Plain of Maricopa County which drains northwestwards toward the Gila River Valley.
The Granite Wash Mountains are a short, arid, low elevation mountain range of western-central Arizona, in the southeast of La Paz County. The range borders a slightly larger range southeast, the Little Harquahala Mountains; both ranges form a section on the same water divide between two desert washes. The washes flow in opposite directions, one northwest to the Colorado River, the other southeast to the Gila River.
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