TrailScout / coverage / South Dakota
Best-signal federal campgrounds in South Dakota
7 federal campgrounds, showing mobile coverage across all carriers. 5 reach at least one carrier on-site, 3 have 5G-fast on at least one carrier, 1 have showers.
On-site signal by carrier: T-Mobile 3 · Verizon 5 · AT&T 4 · UScellular 0 · Dish/Boost 0
Coverage is each carrier's own FCC filing — a comprehensive baseline (every site, every carrier), but carrier-filed and often optimistic. Treat it as a screen, not a promise: real signal can be worse, so confirm before you rely on it. Facility-level, refreshed quarterly.
| Campground | Agency / area | Sites | Max rig | Amenities | T-Mobile | Verizon | AT&T | UScellular | Dish/Boost |
|---|---|---|---|---|---|---|---|---|---|
| COTTONWOOD (NE) | US Army Corps of Engineers · Lewis and Clark Lake | 77 | 125 ft | 🔌 50A 🚽 sewer 🚰 water hookup ♻️ dump 🚿 showers 💧 drinking water (nearby) | 5G fast | LTE | 5G fast | — | — |
| Cold Brook Campground | US Army Corps of Engineers · Cold Brook Lake | 13 | — | 💧 drinking water | 5G fast | LTE | 5G basic | — | — |
| SUMMIT RIDGE LOOKOUT CABIN | USDA Forest Service · Black Hills National Forest | 1 | 40 ft | 💧 drinking water | LTE | LTE | 5G fast | — | — |
| Cedar Pass Campground | National Park Service · Badlands National Park | 100 | 65 ft | 🔌 50A 💧 drinking water | — | LTE | LTE | — | — |
| Cottonwood Springs Campground | US Army Corps of Engineers · Cottonwood Springs Lake | 18 | 67 ft | 💧 drinking water | — | LTE | — | — | — |
| Elk Mountain Campground | National Park Service · Wind Cave National Park | 67 | 36 ft | 💧 drinking water | — | LTE* | 5G basic* | — | — |
| Jorgen's Hollow Campground | USDA Forest Service · Dakota Prairie National Grasslands | 14 | 50 ft | ♻️ dump 💧 drinking water | — | — | — | — | — |
* signal filed just outside the campground (antenna-plausible). The order is carrier-neutral — best on-site coverage across any carrier floats to the top.