Will you have cell signal at a campsite?
Maybe — the PLM Coverage Map shows where cell signal can likely reach a spot, modeled from observed tower sites shaped by terrain, as of 2024. It is a likelihood, not a guarantee, and it covers Utah only for now. Use it to find which dispersed sites probably have a bar or two, then confirm on the ground.
See the live map →The PLM Coverage Map is a modeled layer, not a redistributed carrier map and not a measurement. It starts from observed cell-tower sites (Mozilla Location Service, CC0) and propagates each carrier's lowest band across USGS 3DEP terrain with a path-loss and diffraction model, so a ridge between you and a tower shows up as a gap. The result shows where signal can likely reach and how many networks overlap a cell: darker means more carriers, the hue names a single carrier, and a paler edge is the modeled T-Mobile 600 MHz fringe. It covers Utah only for now. Terrain folds and weather shift real-world reception, so treat it as likelihood and confirm coverage on the ground.
Common questions
- Will you have cell signal at a campsite?
- Often you can predict it. The PLM Coverage Map models where signal can likely reach by propagating observed tower sites across terrain, and names how many carriers overlap a cell. It is modeled likelihood, not a guarantee — terrain and weather change real reception, so verify locally before you rely on it.
- Where does the coverage data come from?
- Observed cell-tower sites from Mozilla Location Service (CC0), propagated over USGS 3DEP terrain with a path-loss and diffraction model. The map's own words: "Modeled coverage — observed cell sites shaped by terrain (MLS, as of 2024). Where signal can likely reach; verify locally." It is a first-party modeled layer, not a redistributed dataset.
- Which areas does the coverage layer cover?
- Utah only, for now. The modeled layer is not yet shipping for other states. Elsewhere on the map you will not see a coverage wash — plan for no signal and carry a way to reach help that does not depend on a bar.
- Does darker coverage mean better signal?
- Darker means more carriers are modeled to reach that cell, not faster speed. The hue names the single carrier where only one reaches, and the paler edge is the modeled T-Mobile 600 MHz fringe. It tells you who can likely connect, not the throughput you will measure on the ground.
Sources — verify before you camp
- Coverage layer: modeled from observed cell sites (Mozilla Location Service, CC0) propagated over USGS 3DEP terrain. Modeled likelihood, not a measurement — verify locally. As accessed 2026-06.
- Terrain: USGS 3DEP elevation (public domain), served via AWS Terrain Tiles. As accessed 2026-06.
This page aggregates public data; the linked official pages are authoritative — verify before you camp. The color on our map is the disclaimer, never a permit.