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An image of the book "The Travels of Marco Polo.

Who drew the Map with Ship?

Posted by: Cynthia Smith

Featured below is a map known as the “Map with Ship.” The map was donated to the Library of Congress in 1943 by a retired merchant and author named Marcian F. Rossi.  Marcian Rossi was born in Italy in 1870. He moved to the United States during the 1880s. The Rossi family inherited a collection …

Typus orbis descriptione Ptolemaei.

Virtual Orientation to the Geography and Map Division: Tuesday 6/13

Posted by: Amelia Raines

Please join Geography and Map Division staff tomorrow for a virtual orientation to our collections and resources! Date: Tuesday, June 13, 2023 Time: 3:00-4:00 pm (Eastern) Location: Zoom Register for this session here! Reference librarians Cynthia Smith and Julie Stoner will present an introduction to the Geography and Map collections at the Library of Congress. This orientation …

A street map of Paris dated 1870

Exploring Haussmannian Paris

Posted by: Cynthia Smith

During the 19th century Paris underwent a major urban renewal. I am focusing on some of the maps that were published before, during, and after the renovation of Paris. Before the renovation, the residents of central Paris suffered from cholera epidemics, overcrowding and a high infant mortality rate. The Bievre River, which flowed into the …

The Hungarian Parliamentary Building sits on the banks of the Danube. The GeoTIFF locates the building about 150 meters to the northeast of its true location.

The Secret Life of GeoTIFFs

Posted by: Carissa Pastuch

This is a guest post by Rachel Trent, Digital Collections and Automation Coordinator in the Geography and Map Division. The image below is of a TIFF file, but not just any TIFF. Hidden inside are coordinates that bind the image to a specific place on Earth. For every pixel in the image, an estimated latitude …

single sheet map from series

Early 20th Century Survey of Egypt Provincial Series Now Online

Posted by: Carissa Pastuch

In 1899, British geologist Henry G. Lyons (1864–1944) began a systematic reassessment of the cadastral surveys conducted in Egypt under Ottoman Turkish rule. His updated survey was built upon 90 years of work—starting in 1813 when Muʿallim Ghali, a finance minister appointed by Muhammad ʿAli Basha (1769–1849), reorganized the finances of Egypt to optimize taxation. …