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An image of the current map of the month, a French map of the Colorado river from 1844.

Map of the Month: June 2021

Our June Map of the Month is this 1844 Plan de l'embouchure du Rio Colorado dans la Mer Vermeille (English title: Plan from the Mouth of Rio Colorado in the Ruddy Sea). It is a French survey of the mouth of the Colorado River that displays information on the river’s depth, islands, and other navigat...

Pilot Chart of the Great Lakes

Map of the Month – March 2021

Our March 2021 Map of the Month is this 1897 Pilot Chart of the Great Lakes by J.E. Craig and A.C. Roberts. It includes a detailed navigational map of the lakes as well as a variety of information on boating etiquette, weather signals, and other useful notes for sailing on the Great Lakes.   ...