OSNI Discoverer maps

Map of maps

OSNI mapping is now available online. OSNI, then Basemap Gallery (4 squares icon), then either 25K or 50K. This is OpenStreetMap, a good alternative to OSNI

1:50,000 scale Discoverer series

Try disabling your ad-blocker if the map doesn't appear.

GPX Editor

Record map clicks

Reload map

Initialising...