Curated OER
Etc: Territorial Development of the United States, 1783 1889
A map from 1889 of North America showing the expansion in the region of the United States from the original Thirteen Colonies at the end of the Revolutionary War in 1783 to the time the map was made, around 1889, before the territories...
Central Intelligence Agency
Cia: World Factbook: Regional and World Maps
Maps of major areas of the world can be downloaded here. The maps have excellent detail and are in color.
National Weather Service
National Weather Service:climate Prediction Center: Daily Precipitation Analysis
Find real-time daily precipitation analysis for the United States, Mexico, and South America as well as accumulated precipitation maps for the past 30 or 90 days.
Curated OER
Educational Technology Clearinghouse: Maps Etc: South America, 1898
A map of South America in 1898. The map shows capitals and major cities, railroads, terrain, rivers, and coastal features, and includes an insert map of the Isthmus of Panama. "The chief industries in South America are herding,...
Curated OER
Etc: Maps Etc: Mexico, Central America, and the West Indies, 1898
A map from 1898 of Mexico, Central America and the West Indies. The map includes an inset map of Cuba and the Isthmus of Nicaragua. "The surface of the Rocky Mountain highland in Mexico is quite similar to that of the great plateau...
Curated OER
Educational Technology Clearinghouse: Maps Etc: North America, 1783
A map of North America, Central America, and northern South America at the end of the American Revolutionary War (1783). The map is color-coded to show the territory of the United States at the time, British possessions in Canada,...
Curated OER
Unesco: Canada: Rideau Canal
The Rideau Canal, a monumental early 19th-century construction covering 202 km of the Rideau and Cataraqui rivers from Ottawa south to Kingston Harbour on Lake Ontario, was built primarily for strategic military purposes at a time when...