page_title: Territorial evolution of Montana
hierarchical_section_title: Territorial evolution of Montana
caption_attribution_description: Map of the states and territories of the United States as it was from June 1846 to December 1846. On June 18 1846, Oregon Country below the 49th parallel, excluding Vancouver Island, was incorporated in to the United States as unorganized territory. On December 28 1846, a portion of Iowa Territory was admitted as the state of Iowa; the remainder became unorganized.
context_page_description: The following timeline traces the territorial evolution of the U.S. State of Montana.
context_section_description: The following timeline traces the territorial evolution of the U.S. State of Montana.
caption: An enlargeable map of the United States after the Oregon Treaty of 1846
exif: {}