THE practical problems involved in the interpretation of geological and topographical maps are here dealt with in a manner likely to appeal to students of geology and civil engineering. Having worked ...

THE evolution of maps, and of our ideas regarding their use and function, might be made the subject of an interesting and profitable study. The main object of the early cartographers was to plot down ...

A map of Chicago, Illinois, imprinted in 1913 from the United States Geographical Survey’s historical topographic map collection. Image courtesy of the USGS Map lovers, rejoice! The United States ...