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Satellite messengers, GMRS radios, offline maps and paper backups for ATV overland trips.
Quick answer
Carry three layers: offline digital maps on a phone or GPS, a paper map of the area, and a two-way satellite messenger or PLB for emergencies. For group rides, GMRS or FRS handhelds keep everyone talking. Garmin lists the inReach Mini 2 at 100 g (3.5 oz).
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Maps
- Official travel maps: Forest Service Motor Vehicle Use Maps (MVUM) and BLM travel maps show which routes are open to which vehicles. Many are free as PDFs for Avenza Maps.
- Offline map apps: onX Offroad, Gaia GPS and similar apps download layers for offline use. onX Offroad
- Paper: a county or BLM map in a zip bag never runs out of battery.
Satellite messengers & PLBs
A two-way satellite messenger (for example, Garmin inReach) lets you text and trigger SOS without cell service; it requires a subscription. A Personal Locator Beacon (PLB) is subscription-free but only sends a distress signal. Pick one and practice with it before the trip. Garmin inReach Mini 2
Group radios
GMRS radios need an FCC license (no exam) in the US; FRS radios do not. Agree on a channel at the trailhead and keep radios on a lanyard or mount, not in a box.
Phone setup
- A vibration-damped handlebar mount (ATV vibration can damage phone camera stabilizers).
- USB power from a switched port.
- Download maps for the whole region, not just the route.
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Sources
Researched Oct 25, 2026. Rules, specs and prices change; confirm with the source.