Mystery Of Great Wall Of California: An Ancient Unsolved Enigma


The ancient Berkeley walls remain an ancient unsolved enigma. Often referred to as the “Great Wall Of California,” it remains unknown who constructed the stone walls and for what reason. Could they prove that an ancient unknown advanced civilization once settled in the East Bay?

Ancient walls leading to a mysterious stone circle

Stretching for over 50 miles, the East Bay “Mystery Walls” are found up and down the hills of the East Bay from Berkeley to San Jose, USA. A 50-mile-long wall is odd enough, but what if the wall was not alone? What if there were other walls?

Berkeley Mystery Walls Photo by

A chain of walls all along Northern California because, as it turns out, there are other mysterious walls in North California but not just in the San Francisco Bay Area. Instead, these walls may stretch as far as the Oregon border. After meandering throughout the Oakland hills, the walls head inland towards Mt. Diablo, where we encounter mysterious stone circles up to 30 feet in diameter. The walls form a spiral 200 feet wide that circles a large boulder in one place.

Who were the mysterious builders of the Great Wall of California?

Some scholars who examined the ancient ruins proposed the stone walls were the work of settlers from Mongolia, as the Chinese tended to wall in their cities.

Perhaps the mystery walls were reminiscent of the Great Wall of China. Did the Zheng He fleet, which set out to circumnavigate the world, reach California? Anchors found in Baja California, mysterious writings from a Buddhist monk in Meso America, and even a sunken 17th century Junk found near Chico suggest the Chinese explorer was present in this part of the world.

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Some say the Ohlone people (also known as the Costanoan), a Native American Indian tribe raised the wall. Other scholars have theorized that they were built by early Missionaries. Yet, another group still wonders if Sir Frances Drake did not leave colonists behind at the site where he completed the circumnavigation of the globe. Still, there is too little evidence to confirm the hypothesis, like the other theories.

The identity of the builders of the Great Wall of California remains shrouded in mystery.

The wall is up to five feet tall in some places and was constructed from varying sizes of boulders. Some are basketball-sized rocks, while others are large sandstone boulders weighing a ton or more. Many of the stones are heavy, and the entire site appears very old. Many formations have sunk far into the earth and are often entirely overgrown with different plants.

Berkeley Walls Photo by

The purpose of the walls is unknown. At first sight, one might think it was a defense construction of some kind, but this theory has certain problems. The wall is not continuous, and it is composed of multiple sections. In addition, the wall is not high enough to have been used as a defense mechanism. It is, therefore, doubtful it was used as a fence. So, why was it built?

Archaeologists and scientists have not investigated this curious and exciting ancient site in more detail. Unfortunately, the walls haven’t been subjected to a serious scientific examination. For now, the Berkeley Walls remain an old unsolved North American mystery.

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