Between 1851 and 1892, the United States Army forced California's tribes to sign 18 treaties that relinquished each tribe's rights to their traditional lands in exchange for reservations. Due to pressure from California representatives, the Senate failed to ratify the treaties and ordered them to remain secret. In 1896 the Bureau of American Ethnology report on major native American Indian interactions with the United States Government was the first time the treaties were made public. The report, Indian Land Cessions in the United States (book), compiled By Charles C. Royce, includes the 18 lost treaties between the state's tribes and a map of the reservations. Below is the California segment of the report listing the treaties. The full report covered all 48 states' tribal interactions nat