Maps and GIS
A to Z maps online
"... database of proprietary, royalty-free world, continent, country, and state maps. Included in the 4,000+ maps are: political maps, physical maps, outline
maps, population maps, precipitation maps, climate maps, and other thematic maps."--About page.
Harvard Map Collection digital maps
This virtual collection includes maps and atlases currently available through HOLLIS, the Harvard Image Delivery Service and georeferenced maps available
through the Harvard Geospatial Library (HGL). Modes of searching include browsing the index or a keyword and guided search toolbar.