A four mile (6 km) section of canal, including Tinkers Creek Aqueduct.

Mile long segment of the Miami and Erie Canal cut as deep as 52 feet (16 m), in order to cut a trough through a blue clay ridge separating the St. Marys and Auglaize River watersheds.

A map from 1920 of the southern part of Ohio, showing the capital of Columbus, principal cities and towns, counties and county seats, railroads, canals, rivers, including the Ohio River. A grid reference in the margins of the map lists...

A map from 1920 of the southern part of Ohio, showing the capital of Columbus, principal cities and towns, counties and county seats, railroads, canals, and rivers, including the Ohio River.

A map from 1920 of the southern part of Ohio, showing the capital of Columbus, principal cities and towns, counties and county seats, railroads, canals, and rivers, including the Ohio River.

A map from 1920 of the northern part of Ohio, showing principal cities and towns, counties and county seats, railroads, canals, rivers, and islands of Lake Erie. A grid reference in the margins of the map lists counties, principal...

A map from 1914 of Ohio showing the capital of Columbus, counties and county seats, principal cities and towns, railroads, canals, lakes, and rivers. A grid reference at the bottom of the map lists counties, principal cities, and towns...

A map from 1920 of the northern part of Ohio, showing principal cities and towns, counties and county seats, railroads, canals, rivers, and islands of Lake Erie.

A map from 1920 of the northern part of Ohio, showing principal cities and towns, counties and county seats, railroads, canals, rivers, and islands of Lake Erie.

A map from 1891 of Ohio showing the capital of Columbus, principal cities and towns, railroads, canals, lakes, and rivers.

A map from 1902 of Ohio showing the capital of Columbus, principal cities and towns, railroads, canals, lakes, and rivers.

A map from 1906 of Ohio showing the capital of Columbus, principal cities and towns, railroads, canals, lakes, and rivers.

A map from 1909 of Ohio showing the capital of Columbus, principal cities and towns, railroads, canals, lakes, and rivers.

A map from 1919 of Ohio showing the capital of Columbus, principal cities and towns, railroads, canals, lakes, and rivers.

A map from 1922 of Ohio showing the capital of Columbus, principal cities and towns, railroads, canals, lakes, and rivers.

A map from 1919 of Ohio showing the capital of Columbus, counties and county seats, principal cities and towns, railroads, canals, lakes, and rivers.

A map from 1920 of Ohio showing the capital of Columbus, counties and county seats, principal cities and towns, railroads, canals, lakes, and rivers.

A map from 1892 of Ohio showing the capital of Columbus, counties and county seats, principal cities and towns, railroads, canals, lakes, and rivers. An inset details Hamilton County and the vicinity of Cincinnati.

A map from 1903 of Ohio showing the capital of Columbus, counties and county seats, principal cities and towns, railroads, canals, lakes, and rivers. An inset map of Hamilton County details the vicinity of Cincinnati.

A map from 1912 of Ohio showing the capital of Columbus, counties and county seats, principal cities and towns, railroads, canals, lakes, and rivers. A grid reference in the margins of the map lists counties with populations given in...

A map of Cleveland, Ohio showing principal streets, railroads, canals, and major landmarks.

A map from 1914 of Cincinnati, Ohio showing principal streets, railroads, canal, neighboring communities, and major landmarks.

A lesson plan from the producers of the 16-episode PBS series "Freedom: A History of US" that examines how new technology and scientific advances of the nineteenth century changed America. Includes ideas for directing students through a...

A brief description of this Ohio communal society that persisted until 1898.