This document summarizes key groups and events related to the settlement of the American West between 1850-1900. It describes the miners who migrated west during the gold rush and discusses the expansion of the railroad. Native Americans faced declining buffalo populations, conflicts with settlers over land, and forced relocation to reservations. Cowboys worked on ranches during the rise of the cattle industry. Pioneer farmers settled the plains with support from homestead acts but faced challenges of the environment. The document outlines tensions between competing groups and the establishment of policies that shaped the development of the Western frontier.