Topographic maps that show the details of terrain as well as trekking routes and lodging facilities are available for all of Norway in suitable scales of 1:50 000 to 1:100 000, with some detailed local maps in scales of 1:25 000. 1:50 000 maps are also available for GPS.
You can order maps by e-mail: email@example.com. You can also buy maps online from the websites mentioned below. Bookshops across the country also sell maps, but not all have all maps for the country. The staffed lodges sell maps of their immediate areas.
The Norwegian Mapping Authority (Statens kartverk), www.statkart.no, makes maps for all of Norway that are sold by the Ugland IT Group, principally online at Kartbutikken ("Map Shop"),http://www.kartbutikken.no. The maps are in scale 1:50 000. Special touring maps in scales 1:100 000, 1:50 000 and 1:25 000 are made by Ugland It Group AS for many hiking and skiing areas.
Many maps of trekking areas along the eastern border of the country are published by Lantmäteriet (the Swedish mapping authority that retained its name in English) and listed on its website at www.lantmateriet.com (with pages in English) and by the National Land Survey of Finland and listed on its website at www.maanmittauslaitos.fi (with pages in English).
Some of the DNT member associations as well as municipalities publish local trekking maps, particularly of the principal outdoor recreation areas. Most of these maps are of high quality, as they are based on digital cartographic data compiled by the Norwegian Mapping Authority.
The best map
Maps made specifically for trekking are best. The finer the scale of a map, the more details it shows and the lesser area it covers. A map in scale 1:100 000 is adequate for summer hikes on marked trails in most areas. These maps provide good overviews and are ideal for viewing surrounding terrain from a summit. Maps in scale 1:50 000 are best for use in steep, rough terrain, on glaciers and along routes where there are no trails. Maps of finer scale, 1:25 000 are available for a few areas and are best when there are many trails as well as for trekking away from trails.
Be sure to get the latest editions of all maps for a tour, as they will have the most recent details on trails, tracks, bridges, river crossings, cabins and roads. Trekking maps are recurrently updated in step with larger changes in the trail network. As a rule, new editions of maps are published every five years or less for areas undergoing change, while new editions may appear at intervals of ten years or more for areas with little change, such as wilderness areas with no roads and few buildings.