Arroyo Mocho

Arroyo Mocho
The Arroyo Mocho as it passes through Livermore
Arroyo Mocho is located in California
Arroyo Mocho
Location of the mouth of Arroyo Mocho in California
Location
CountryUnited States
StateCalifornia
CountiesAlameda County & Santa Clara County
CitiesPleasanton & Livermore
Physical characteristics
SourceMount Mocho[2]
 • location18 mi (30 km) east of Milpitas
 • coordinates37°27′13″N 121°31′22″W / 37.45361°N 121.52278°W / 37.45361; -121.52278[1]
 • elevation3,160 ft (960 m)
MouthConfluence with South San Ramon Creek to form Arroyo de la Laguna
 • location
Pleasanton, California
 • coordinates
37°40′37″N 121°54′44″W / 37.67694°N 121.91222°W / 37.67694; -121.91222[1]
 • elevation
315 ft (96 m)[1]

Arroyo Mocho is a 34.7-mile-long (55.8 km)[3] stream which originates in the far northeastern corner of Santa Clara County and flows northwesterly into eastern Alameda County, California. After traversing the cities of Livermore and Pleasanton it joins South San Ramon Creek to become Arroyo de la Laguna, which in turn flows to Alameda Creek and thence to San Francisco Bay.[4]

  1. ^ a b c U.S. Geological Survey Geographic Names Information System: Arroyo Mocho
  2. ^ "Mount Mocho". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
  3. ^ 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
  4. ^ "Arroyo Mocho Watershed Map". explore.museumca.org.