The Great Plains lie west of the Mississippi River and east of the Rocky Mountains. Fauna are typical of central Rocky Mountains. They live in habitats ranging from a rocky hillside to flat farmland. The region's geology developed from river deposits formed from the erosion of the Rocky Mountains. Prevent the people from crossing the Rocky Mountains? Effects in the Rocky Mountain region were varied. Colorado is known for its Southwest and Rocky Mountain cuisine. His battalion became a training unit in the rugged terrain of the Rocky Mountains. The region's geology developed from stream deposits formed from the erosion of the Rocky Mountains. Common grackles are found in much of North America east of the Rocky Mountains. The Rocky Mountain division slowly shed stores. Major rivers flowing from the Rocky Mountains offer hydroelectric power resources. The statue is built on an elevated platform on top of a rocky hill. Bryan was strongest in the South, rural Midwest, and Rocky Mountain states. Aspen also has a reputation as the culinary capital of the Rocky Mountain region.