La Jolla map dealer Alex Clausen knew there was something unusual about the nautical chart he spotted at a Getty estate sale. His careful eye uncovered a 14th century treasure he purchased for 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 ...

Navigraph offers extended integrations, such as charts with moving maps, navigation data, and flight plan import capabilities for MSFS, X-Plane, and many add-on aircraft for Prepar3D and Microsoft ...