GPS is a luxury. A map is a skill.
The Offline Navigation Suite is a self-contained set of offline mapping and navigation tools that work without GPS, cell towers, or cloud maps. It includes OpenStreetMap vector databases for turn-by-turn routing, high-resolution USGS Topographic GeoPDFs, and a land-navigation training guide covering compass work, terrain association, and dead reckoning.
GridDownData carries the Offline Navigation Suite on a ruggedized USB drive: regional OpenStreetMap vector databases for offline smartphone routing, high-resolution USGS Topographic GeoPDFs, and the Lost Art of Navigation training guide — no GPS or cell signal required.
Frequently asked questions
What is the Offline Navigation Suite?
It is a set of offline mapping tools on the GridDownData drive: OpenStreetMap vector databases for offline smartphone routing, USGS Topographic GeoPDFs, and the Lost Art of Navigation training guide.
Does it work without GPS or cell service?
Yes. Everything is stored locally on the drive. OSM vector routing, topo maps, and training guides work without any network connection.
Get the Grid-Down Survival Data Kit
This topic is part of the full Grid-Down Survival Data Kit — a pre-loaded, ruggedized USB drive sealed in a protective Faraday pouch. No internet required.
- OpenStreetMap vector routing database
- USGS Topographic GeoPDF collection
- The Lost Art of Navigation training guide
- Curated off-grid water purification guides
- Complete WikiMed emergency medical database
- Waterproof, solid-state USB-A/USB-C drive sealed in an EMP-shielded Faraday pouch