- Helena is the capital city of the U.S. state of Montana. It is located in the western part of the state, nestled between the Big Belt Mountains to the east and the Missouri River to the west. Helena is known for its beautiful natural surroundings, including nearby national forests, lakes, and mountains. The city has a rich history, as it was founded as a gold camp during the Montana gold rush in the 1860s. Today, Helena is a vibrant city with a thriving arts scene, numerous outdoor recreational opportunities, and a charming downtown area with historic buildings.