Accompanied by text: Magnetic anomaly map of North America ; processing, compilation, and geologic mapping applications of the new digital magnetic anomaly database and map of North America. Includes inset of Hawaii. French, English, and Spanish. Also available via the Internet from USGS Web site.
Contains about one thousand cartographic images relative to the area of the Province of Quebec (Northeast America, New France). These images were mostly created from original maps and atlases but also from facsimiles. They are accessible via four indexes : title (titres), author (auteurs), date (chronologique), area (toponymes). Maps were digitized at very high resolution, enabling every place-name to be easily read.