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Arroyo Las Positas facts for kids

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Arroyo Las Positas
Arroyo Las Positas near its beginning, with Interstate 580 in the background.
Arroyo Las Positas is located in California
Arroyo Las Positas
Location of the mouth in California
Country United States
State California
Region Alameda County
Cities Livermore, Dublin
Physical characteristics
Main source confluence
north of Livermore
482 ft (147 m)
37°42′20″N 121°45′18″W / 37.70556°N 121.75500°W / 37.70556; -121.75500
River mouth Arroyo Mocho
north of Dublin
348 ft (106 m)
37°41′41″N 121°51′34″W / 37.69472°N 121.85944°W / 37.69472; -121.85944

Arroyo Las Positas is a 7.4-mile-long (11.9 km) 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.

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