Spavinaw Lake in Spavinaw, Oklahoma was created in 1924 as a result of the construction of the Spavinaw Dam on Spavinaw Creek. The lake serves as a major source of drinking water for several cities in northeastern Oklahoma. The hydrology of the lake is primarily dependent on surface water flow from the Spavinaw Creek watershed, which covers an area of over 600 square miles. The lake is also replenished by snowmelt and runoff from the surrounding hills during the winter months. The lake is not used for agricultural purposes, but it does offer recreational activities such as fishing, boating, and camping for visitors. The lake is an important ecological resource, providing habitat for various species of fish, birds, and other wildlife.