Centennial Wash
Encyclopedia
Centennial Wash is an ephemeral
dry wash that forms the final watershed
of the Gila River
in central Arizona
— before the river turns south. From the Centennial Wash confluence, the Gila turns south, then southwest to exit Arizona on the California
border adjacent Yuma
.
The Centennial Wash drainage is adjacent to the south-flowing Hassayampa River
Drainage on the east; the next drainage east is the Agua Fria Drainage-(as shown on map). To the south as the Gila River makes its turns, arriving at the Painted Rock Reservoir, the Hassayampa and Centennial Wash drainages abut the Lower Gila-Painted Rock Reservoir Drainage.
Ephemeral
Ephemeral things are transitory, existing only briefly. Typically the term is used to describe objects found in nature, although it can describe a wide range of things....
dry wash that forms the final watershed
Drainage basin
A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...
of the Gila River
Gila River
The Gila River is a tributary of the Colorado River, 650 miles long, in the southwestern states of New Mexico and Arizona.-Description:...
in central Arizona
Arizona
Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...
— before the river turns south. From the Centennial Wash confluence, the Gila turns south, then southwest to exit Arizona on the California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
border adjacent Yuma
Yuma, Arizona
Yuma is a city in and the county seat of Yuma County, Arizona, United States. It is located in the southwestern corner of the state, and the population of the city was 77,515 at the 2000 census, with a 2008 Census Bureau estimated population of 90,041....
.
Hassayampa River
The Hassayampa River is a mostly underground river, the headwaters of which are just south of Prescott, Arizona, and flows mostly south towards Wickenburg entering the Gila River near Hassayampa, Arizona...
Drainage on the east; the next drainage east is the Agua Fria Drainage-(as shown on map). To the south as the Gila River makes its turns, arriving at the Painted Rock Reservoir, the Hassayampa and Centennial Wash drainages abut the Lower Gila-Painted Rock Reservoir Drainage.