As estate sales of the über-wealthy go, the Ann and Gordon Getty Collection sell-off at Christie’s last year was a major success. Across 2,300 sold lots, it netted $200 million for charity, set a ...

The rare 14th-century portolan chart is worth $7.5 million. Robert Gauthier / Los Angeles Times / Getty Images Last fall, Christie’s auctioned off a “highly unusual” nautical map as part of an estate ...

WASHINGTON — John Hessler, mathematical wizard and the senior cartographic librarian at the Library of Congress, slipped into the locked underground vaults of the library one morning last week.

Teledyne Geospatial has launched the CARIS AutoChart, a nautical chart production solution. Traditionally, the production of nautical paper charts has been labor-intensive and time-consuming. It often ...

One drawback is that nautical charts are often pretty big, perhaps three feet across and two-and-a-half feet from top to bottom. On big ships, navigators use a large chart table to view charts ...

In the last third of the 16th century, the Spanish crown set in motion a project to obtain a complete map of the New World. The method thought up for this was to use surveys, known as Relaciones ...