A California Historical Landmark is a site designated by the state of California to recognize and preserve locations of historical significance. These landmarks can include buildings, monuments, or natural features that have played a role in the state's history. Each landmark is marked with a plaque that provides information about its historical importance. The California Historical Landmark program was established to promote awareness and appreciation of the state's rich heritage. Landmarks are numbered and can be found throughout California, highlighting events, people, and places that have shaped the state's development, such as the Gold Rush, Spanish missions, and Native American history.