|Elevation||4,304 ft (1,312 m)|
|Time zone||UTC-8 (Pacific (PST))|
|• Summer (DST)||UTC-7 (PDT)|
Omega (originally, Delerium Tremens) was a former settlement in Nevada County, California, United States, first populated in 1850 by a single miner, J.A. Dixon, working a claim during the California Gold Rush. The town was located 3.25 miles (5.2 km) east-southeast of the present-day unincorporated town of Washington, California. A sister town, Alpha, located at what is now the site of the historical Omega Hydraulic Diggings, was about 1 mi (1.6 km) north of Omega. In the mid 1850s, following the introduction of hydraulic mining operations nearby, the town prospered. Omega had a post office (which operated from 1857 to 1891), and needed to convert a residence into a jail in late 1858.
- U.S. Geological Survey Geographic Names Information System: Omega, California
- "Nevada County GenWeb Nevada County History". cagenweb.com. Retrieved 2009-05-31.
- Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 533. ISBN 1-884995-14-4.
- Alpha-Omega Lookout and Monument; at malakoff.com; accessed May 2014