Mountain House, Kern County, California

Mountain House or Willow Springs Station, in what is now Kern County, California, was a stage station of the Butterfield Overland Mail, located 12 mi south of Fountain Spring Station, and 15 mi northeast of Posey Creek Station at Willow Springs on Willow Springs Creek.

Mountain House is a California Historical Landmark. On October 13, 1957, the California State Park Commission erected marker number 589 1 + 1/2 mi south of it. Mountain House Station California Historical Landmark, signed May 22, 1957, reads:

"NO. 589 MOUNTAIN HOUSE - One and one-half miles north of this point stood the Mountain House Station on the route of the Butterfield Stage. Operating through present Kern County during 1858-1861, this famous line ran from St. Louis, Missouri to San Francisco until the outbreak of the Civil War."