Curated OER
Educational Technology Clearinghouse: Maps Etc: North America, Vegetation, 1911
A map from 1911 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the areas of primary vegetation types for the region. The map is color-coded to show areas of forests, areas of woodland, grass, and...
Curated OER
Etc: Maps Etc: Vegetation of North America, 1916
A map from 1916 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general distribution of vegetation types in the region. The map is color-coded to show natural vegetation in areas of ice desert,...
Curated OER
Etc: Maps Etc: North American Vegetation Regions, 1901
A map from 1901 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general vegetation regions. The map shows areas of deserts, tundras, and ice fields, areas of grassy lands, areas of open forests,...
Curated OER
Etc: Maps Etc: Territories of the United States, 1900
A map from 1909 showing territories added to the United States: Alaska (1867), Hawaii by annexation (1898), and Puerto Rico and the Philippines after the Spanish-American War (1898).
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
Educational Technology Clearinghouse: Maps Etc: Relief of North America, 1872
A base relief map from 1872 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general mountain systems, highlands, and plains of the region. Major river systems are shown.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Relief of North America, 1909
A base relief map from 1909 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general mountain systems, highlands, and plains of the region. Major river systems are shown.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Relief of North America, 1890
A relief map from 1890 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general mountain systems, highlands, and plains of the region. Major river systems are shown. "North America is the third...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Rainfall in North America, 1898
A map from 1898 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general distribution of rainfall in the region. The map shows areas of little or no rainfall to areas of heavy rainfall. The map...
Curated OER
Etc: Maps Etc: Population of North America, 1898
A map from 1898 showing the population distribution of North America, Central America, and Caribbean to Puerto Rico. The map shows areas of sparse to heavily populated concentrations at the time. "Many thousands of white men from western...
Curated OER
Etc: Maps Etc: The Surface of North America, 1912
A base relief map from 1912 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general surface terrain, including mountain systems, highlands, plains, and major river systems of the region....
Curated OER
Etc: Acquisition of Territory by the United States, 1783 1917
A map from 1922 of the United States showing the acquisition of territory from 1783 to the purchase of the Dutch West Indies (Virgin Islands) in 1917. This map is color-coded to show each of the acquisitions with map notations giving...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Vegetation Regions, 1898
A base map from 1898 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general distribution of vegetation types in the region, including areas of deserts, tundras, and ice fields, areas of grassy...
Curated OER
Image of San Juan
Check out this page from the Library of Congress for resources about Puerto Rico during the war, including an essay, chronology, maps, literature, & photos.
US Environmental Protection Agency
Epa: Air Data
The AirData website gives you access to air quality data collected at outdoor monitors across the United States, Puerto Rico, and the U. S. Virgin Islands. The data comes primarily from the AQS (Air Quality System) database. You can...
Other
Serdp: Managing Contaminated Sediments
This resource is from the Strategic Environmental Research and Development Program (SERDP), an environmental research arm of the Department of Defense. It explains how sediment contamination has affected DoD facilities and what is being...
Mariners' Museum and Park
Mariners' Museum: Juan Ponce De Leon
Discover details of Ponce de Leon's expeditions in search of land for Spain in the new world. Follow the Spanish explorer's trips to present day Puerto Rico, St. Augustine, and Dry Tortugas, see a map of his journey, images featuring...
Curated OER
Etc: The West Indies and Mexico, 1898 1906
A map from 1907 of Mexico, Central America, and the West Indies (Greater Antilles to Puerto Rico) between the Spanish-American War in 1898 and the Third Pan-American Conference in 1906. The map shows the political boundaries in 1906,...