Mankas Corner[1] is an unincorporated community in the Suisun Valley AVA, is an American Viticulture Area in Solano County, California.

The area around Mankas Corner is primarily agricultural, with the main crops being wine grapes and olives.

Diablo, which is visible to the south across the Suisun Bay estuary, the twin summit of Twin Sisters, which is the high point in the Howell Mountains to the west, and the Blue Ridge of the Vaca Mountains, a prominent escarpment visible to the east.

It was then the intersection of the Benicia-to-Suisun City stagecoach route and the main road running between Suisun and the Berryessa Valley.

The Suisun-Berryessa road was also part of the main route from San Francisco to the Sulphur Bank quicksilver mine in Knoxville, which meant that Barton and Manka's store sat at a major crossroads.