Osage Treaty (1825)
The Osage Treaty (also known as the Treaty with the Osage) was signed in what became Council Grove, Kansas, on June 2, 1825 between William Clark on behalf of the United States and members of the Osage Nation. The accord contained fourteen articles. Based on the most important terms of the accord, the Osage ceded multiple territories to the United States government. According to the first article of the treaty, the territories ceded entailed lands lying within and west of both the State of Missouri and the Territory of Arkansas, lands lying north and west of the Red River, all territories south and east of the Kansas River, and all lands located through the Rock Saline. The accord was proclaimed on December 30, 1825.
- Oklahoma State University Library (Kappler Project: Indian Affairs: Laws and Treaties) - Treaty With The Osage, 1825 (Article I) The Great and Little Osage Tribes or Nations do, hereby cede and relinquish to the United States, all their right, title interest and claim, to lands lying within the State of Missouri and Territory of Arkansas, and to all lands lying West of the said State of Missouri and Territory of Arkansas, North and West of the Red River, South of the Kansas River, and East of a line to be drawn from the head sources of the Kansas, Southwardly through the Rock Saline, with such reservations, for such considerations, and upon such terms as are hereinafter specified, expressed, and provided for.
- Oklahoma State University Library (Kappler Project: Indian Affairs: Laws and Treaties) - Treaty With The Osage, 1825