Gas Fields of the Sacramento Valley, California
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Natural gas production in the Sacramento Valley comes from formations ranging from Cretaceous to Pliocene in age. For the purpose of these maps, the fields were broken into four categories. The Eocene and younger reservoirs include the Capay, the Domengine, the Nortonville, the various gorge fills, and the Tehama Formation. The Paleocene reservoirs are the Meganos and Martinez Formations. The younger Cretaceous includes the Kione, the Winters, and the Starkey, as well as the Blewett and Tracy sands south of the delta. The Forbes is grouped with the older Dobbins and Guinda.
 Sacramento Delta  |