Bunker near Vian, Oklahoma

An unnamed military structure located near Vian, Sequoyah County, Oklahoma, at the given coordinates. The provided web search results discuss the general concept of Deep Underground Military Bases (DUMBs) in the United States, referencing locations primarily in California, but do not contain specific, verifiable information confirming the existence, purpose, or historical context of this particular site in Oklahoma. Therefore, its function, construction era, and current status remain unconfirmed by the available sources.