Arroyo Las Positas

Arroyo Las Positas is a 7.4-mile-long (11.9 km)^[2] westward-flowing watercourse in Alameda County, California, which begins at the confluence of Arroyo Seco and Cayetano Creek north of Livermore, and empties into Arroyo Mocho in Dublin, California.^[3]

Arroyo Las Positas
Arroyo Las Positas near its beginning, with Interstate 580 in the background.
Location of the mouth in California
Etymology	Spanish
Location
Country	United States
State	California
Region	Alameda County
Cities	Livermore, Dublin
Physical characteristics
Source	confluence
• location	north of Livermore
• coordinates	37°42′20″N 121°45′18″W[1]
• elevation	482 ft (147 m)
Mouth	Arroyo Mocho
• location	north of Dublin
• coordinates	37°41′41″N 121°51′34″W[1]
• elevation	348 ft (106 m)[1]

See also

• List of watercourses in the San Francisco Bay Area

References

1. U.S. Geological Survey Geographic Names Information System: Arroyo Las Positas
2. U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed March 15, 2011
3. "Watershed Map" (PDF). Alameda Creek Alliance. Archived (PDF) from the original on 2015-12-09. Retrieved 2021-01-07.