Soda Lake (San Luis Obispo County)

Coordinates: 35°13′52″N 119°53′18″W / 35.2312°N 119.8883°W / 35.2312; -119.8883
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Soda Lake
Carrizo Plain National Monument, San Luis Obispo County, California, US
Coordinates35°13′52″N 119°53′18″W / 35.2312°N 119.8883°W / 35.2312; -119.8883
Typealkali lake
Basin countriesUnited States
Surface area12 km2 (4.6 sq mi)
Surface elevation580 m (1,900 ft)

Soda Lake is a shallow, ephemeral, alkali endorheic lake in the Carrizo Plain in southeastern San Luis Obispo County, California. The lake is located on the southwest side of the northern Carrizo Plain, 103 km (64 mi) east of San Luis Obispo. It can be reached by Soda Lake Road, which runs northwest–southeast between State Route 166 and State Route 58. The lake is at an elevation of 580 m (1,900 ft) and covers an area of about 12 km2 (4.6 sq mi).

Endorheic drainage basin

Aerial view of Soda Lake

Internal drainage of the Carrizo Plain and the formation of Soda Lake began during

precipitation and a higher evaporation rate led to shrinkage of the ancestral lake and associated increased salinity
which set the stage for clay dune formation.

About 30% of the closed or

fairy and brine shrimp, as well as migratory and nesting birds. A boardwalk was built along the shore to prevent damage to the saltbush
habitat that borders the lake.

Dunes

The largest dune bounds the eastern and southern edges of the northern basin. This dune is up to 470 m (1,540 ft) wide, 16.7 m (55 ft) high, and nearly 9.5 km (5.9 mi) in length. Part of the dune is active, receiving sediment from the mud flat exposed between the dune and the salt pan. Most of the eastern (north-south) leg of the dune, which is lower and narrower, is currently inactive. Westward retreat of the shoreline exposed the former lake flat to colonization and stabilization by salt-resistant plants.

Panoramic view of Soda Lake
Thenardite, an anhydrous sodium sulfate
mineral from Soda Lake

See also

  • List of lakes in California

References

(unsourced)

External links