East Bay Mysterious Rock Walls are also known as the Berkeley Mystery Walls. These crude, stone walls are located in the San Francisco Bay Area in California. In places, they are up to a meter high and a meter wide; the walls run in sections anywhere from a few meters to over a half mile long. The rocks used to construct the East Bay Walls are a variety of sizes. Some are basketball-sized rocks, while others are large sandstone boulders weighing a ton or more. Parts of the wall seem to be just piles of rocks, but in other places it appears the walls were carefully constructed. The exact age…

You can find out more about ancient and medieval times right here in the South Bay Area. Learn about the mysterious rock wall formations, too. Paleontological Boy Paleontologists In the Irvington gravel pits, known as Bell Quarry, located off of Osgood Road from 1944 to 1960, the Boy Paleontologists of Hayward unearthed plant and animal fossils including mammoths, saber cats, horses, camels, and even rodents. A new species named Tetrameryx irvingtonensis, a four-pronged antelope, was the most significant find. Presently Freeway 680, between Washington Boulevard and Durham Road, covers this fossil field. Children’s Natural History Museum Including “Irvingtonian Fossils”, the “Boy Paleontologist” Room, “Bones of Vertebrates,” and “Environments through Time”…