| Arroyo de la Laguna | |
|---|---|
 Alameda County Resource Conservation District restoration project in lower Arroyo de la Laguna will re-establish riparian terraces in eroded channel. | |
  Location of the mouth of Arroyo de la Laguna in California | |
| Etymology | Spanish |
| Location | |
| Country | United States |
| State | California |
| Region | Alameda County |
| City | Pleasanton |
| Physical characteristics | |
| Source | confluence |
| • location | Pleasanton |
| • coordinates | 37°40′36″N 121°54′44″W / 37.67667°N 121.91222°W[1] |
| • elevation | 315 ft (96 m) |
| Mouth | Alameda Creek |
• location | south of Sunol, California |
• coordinates | 37°35′18″N 121°53′27″W / 37.58833°N 121.89083°W[1] |
• elevation | 217 ft (66 m)[1] |
| Basin features | |
| Tributaries | |
| • left | Arroyo Valle |
| • right | Sinbad Creek |
Arroyo de la Laguna is a 7.5-mile-long (12.1 km)[2] southward-flowing stream in Alameda County, California, United States which originates at the confluences of South San Ramon Creek and Arroyo Mocho. The Arroyo de la Laguna is fed by tributaries in the Amador Valley and certain eastern slope drainages of the Diablo Range; these tributaries include Arroyo Valle and Sinbad Creek. Arroyo del la Laguna is the major tributary to Alameda Creek which in turn flows into the San Francisco Bay.
From prehistoric times much of the eastern part of the Amador Valley consisted of a lake known as Tulare Lake. With development of the valley starting in the 19th century, drainage alterations in this watershed reduced the lake to a watercourse now called the Arroyo de la Laguna.[3]
- ^ a b c U.S. Geological Survey Geographic Names Information System: Arroyo de la Laguna
- ^ 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
- ^ Arroyo de la Laguna: Watershed Map and Profile)