In 1828, the Mexican government sent General Manuel de Mier y Terán on a mission to determine the United States-Mexico boundaries between the Red and Sabine rivers. Mier y Terán’s mission also included studying the number of Anglo-American settlers in Texas and determining the attitudes of those living in Texas.
The West, region, western U.S., mostly west of the Great Plains and including, by federal government definition, Alaska, Arizona, California, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming.
