American frontier - Subtopics

American pioneers Bartleson–Bidwell Party First transcontinental railroad Denver and Rio Grande Western Railroad Butterfield Overland Mail Boot Hill cemeteries American Old West gunfights Works about the American Old West American West museums Cochise County conflict Texas folklore Indian Territory Texas Revolution Mexican War of Independence Trail of Tears Indian wars of the American Old West Sagebrush School Second French intervention in Mexico Steamboat transport on the Colorado River Military units and formations of the United States in the Indian Wars