PTGBastion

Offline maps

Build your own offline map packs

Choose any area on Earth, pick the layers you want, and BASTION builds a map pack that syncs to your device and renders completely offline. Vector maps from OpenStreetMap and public aerial imagery are free — you only pay if you pull premium commercial imagery.

  1. 1

    Pick an area

    Search by city, ZIP, or country, then draw the perimeter you need on the map.

  2. 2

    Choose your layers

    Street and topographic vector maps from OpenStreetMap, plus aerial and satellite imagery — pick the layers and detail (zoom) that fit.

  3. 3

    Sync to your device

    We build the pack and drop it in your Maps folder. Your device pulls it on the next sync and renders it fully offline — no signal required.

Sign in to start building

Map building is part of your BASTION account. Sign in to pick an area and sync it to your device. No account yet? Getting one is free.

Maps render on-device from open data — © OpenStreetMap contributors. Your device never needs a signal to display a downloaded map.