Curated OER
Etc: Maps Etc: United States Canal Zone Isthmus of Panama, 1912
A map from 1912 of the United States Canal Zone in Panama. The map shows the location of the canal, the deepened approaches to the canal, and the locks. The map also shows mountain ranges, railroads, projected railroads, post offices,...
Curated OER
Educational Technology Clearinghouse: Maps Etc: American Population, 1790
A map of the original thirteen States in 1790 showing the distribution of the European-American population at the time and the general tribal lands of the Native Americans east of the Mississippi River. The map shows the State lines,...