A map of the Adirondack Mountains, southern Lake Champlain, eastern Lake Ontario, and Hudson River Valley south to Peekskill showing the important battle sites of the area during the American Revolutionary War.

A map of the American colonies and territories west to the Mississippi River between the end of the French and Indian War of 1763 and the beginnings of westward expansion of the trans-Appalachian colony proposed in the Vandalia Project...

A map from 1902 of Montana showing the capital of Helena, major cities and towns, Indian reservation boundaries, railroads, rivers, and mountains.

A map from 1906 of Montana showing the capital of Helena, major cities and towns, Indian reservations, railroads, rivers, and mountains. The boundaries of Yellowstone National Park, primarily in Wyoming, are shown.

A map from 1922 of Montana showing the capital of Helena, major cities and towns, Indian reservations, railroads, rivers, and mountains. The boundaries of Yellowstone National Park, primarily in Wyoming, are shown.

A map from 1922 of Montana showing the capital of Helena, major cities and towns, Indian reservations, railroads, rivers, lakes, and mountains. The boundaries of Yellowstone National Park, primarily in Wyoming, are shown.

A map from 1909 of Montana showing the capital of Helena, major cities and towns, Indian reservations, railroads, rivers, lakes, and mountains. The boundaries of Yellowstone National Park, primarily in Wyoming, are shown.

A map from 1892 of Montana showing the capital of Helena, counties and county seats, major cities and towns, Indian reservations, railroads, rivers, and mountains. An inset map details Yellowstone National Park, primarily in Wyoming.

A map from 1919 of Montana showing the capital of Helena, counties and county seats, major cities and towns, Indian reservations, railroads, rivers, and mountains. An inset map details Yellowstone National Park, primarily in Wyoming.

A map from 1920 of Montana showing the capital of Helena, counties and county seats, major cities and towns, Indian reservations, railroads, rivers, and mountains. The boundaries of Yellowstone National Park, primarily in Wyoming, are...

A map from 1920 of Montana showing the capital of Helena, counties and county seats, major cities and towns, Indian reservations, military reservations, railroads, rivers, and mountains. The boundaries of Yellowstone National Park,...

A map from 1914 of Montana showing the capital of Helena, counties and county seats, major cities and towns, Indian reservations, military reservations, railroads, rivers, and mountains. An inset map details Yellowstone National Park,...

A map from 1920 of Montana showing the capital of Helena, counties and county seats, major cities and towns, Indian reservations, military reservations, railroads, rivers, and mountains. The boundaries of Yellowstone National Park,...

A map from 1904 of Montana showing the capital of Helena, major cities and towns, railroads, rivers, and mountains. The boundaries of Yellowstone National Park, primarily in Wyoming, are shown. "Montana was organized as a Territory in...

A map of the northern Rockies in Montana showing the mountain systems, ranges, and intermontane trenches of the area.

A regional map of central England from 1920, showing major cities, towns, railways and canals, and counties with the county boroughs underlined in red. The map shows important battle sites, major rivers, and prominent mountains and hills...

A regional map of southwestern England from 1920, showing major cities, towns, and ports, railways and canals, and counties with the county boroughs underlined in red. The map shows important battle sites, major rivers, prominent...

A detailed travel map of Scotland in 1908, showing portions of counties Banff, Aberdeen, and Kincardine. The map shows first class and secondary roads, railways, cities, towns, ports, rivers, terrain, and coastal features of the area....

A detailed travel map of the islands Lewis and Harris off the northwestern coast of Scotland from 1908, showing first class and secondary roads, cities, towns, ports, ferry and steamer routes, rivers, lakes, terrain and coastal features...

A geo-political map of England and Wales that shows country borders current to 1904, major cities, railroad lines, canals and navigable rivers. Hadrian's Wall is shown, referred to on the map as the Roman Wall. Physical features such as...

A detailed travel map of Scotland from 1908, showing portions of counties Sutherland and Caithness. The map shows first class and secondary roads, railways, cities, towns, ports, rivers, lakes, terrain and coastal features of the area....

A detailed travel map of western Scotland from 1908, showing portions of Argyll County and the islands of Mull and Jura. The map shows first class and secondary roads, railways, cities, towns, ports, ferry routes, rivers, lakes, terrain...

Campsite used during the westward passage of the Lewis and Clark Expedition in 1805 as the party prepared to cross the Bitterroot Mountains, and again during return passage in 1806.

Mountain and Cimarron Cutoff routes of Santa Fe Trail joined here.