Modoc Campground
J. Strom Thurmond Lake · Georgia · 67 sites
Imagery: USGS The National Map
Overview
Modoc Campground is a US Army Corps of Engineers campground in J. Strom Thurmond Lake, Georgia, with 67 sites. Very shady: nearly every site is under trees. T-Mobile, Verizon and AT&T report coverage at every site.
63 of 67 sites shaded
1 of 67 sites in full sun
5 of 67 sites with clear sky
Map of the campground
Every site from the Recreation.gov listing. Choose a layer to see it across the campground; tap a site to open it in Roam.
Layers
More in Roam Premium
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Questions
Which sites at Modoc Campground are the shadiest?
Nearly all of them. 63 of 67 sites at Modoc Campground have good shade from the trees, including from the hot afternoon sun.
See the tree canopy in RoamWhich sites at Modoc Campground get the most sun?
Only a few. 1 of 67 sites is truly sunny; the rest are shaded.
See the tree canopy in RoamWill Starlink work at Modoc Campground?
Only at a few. About 5 of 67 sites have a clear gap in the trees for Starlink and 4 a partial one; most sit under tall trees. Satellite texting on a phone needs less open sky, but still works best from the most open spot you can find. This is our estimate from tree heights — check with the Starlink app's obstruction check when you arrive.
See the tree canopy in RoamWhich sites at Modoc Campground are the most level?
8 of 67 sites are flat, and 12 more have a gentle slope most RVs can level with blocks; 47 are steeper, better for tents. Sites that take RVs or trailers fit rigs up to 48 ft.
See the slope at each site in RoamDoes Modoc Campground have cell service?
Yes. T-Mobile, Verizon and AT&T all report coverage at every site at Modoc Campground. That's the coverage each carrier reports to the FCC, not a measured signal, so under trees or below a ridge it can be weaker.
See the coverage map in RoamWhat’s the weather like at Modoc Campground in October?
In October, expect highs around 76°F and lows around 52°F, with about 2.7 inches of rain over the month. Every month’s averages are in Roam Premium.
Open Modoc in RoamCampground facts
- Sites
- 67
- Kinds
- 67 for RVs or trailers
- Hookups
- 66 with electric
- Longest rig
- 48 ft
- Accessible
- 2 sites
- Elevation
- 332–393 ft
- Every site
- Pets allowed · Check-in 3 PM, check-out 1 PM
- Managed by
- US Army Corps of Engineers
- Booking
- Reserve on Recreation.gov
How we know Sources and limits
Shade, sun and Starlink are our estimates from Meta and the World Resources Institute’s canopy-height model (about 2 m pixels, from satellite imagery calibrated with space lidar; CC BY 4.0). From 2 m above each site we trace 72 lines out to 60 m and note the tallest tree in each direction. Shade counts trees overhead, the canopy within 30 m and how much of the afternoon sky is blocked. Sun counts how open the southern sky is. Starlink needs open sky above 35°, with the northern half counted twice because US dishes tilt north, and we keep the best spot within 8 m of the site’s post. The model sees tree heights only, not trunks, buildings or hills, so check with the Starlink app when you arrive.
Slope is the ground at each site’s post over about 4 m, from USGS 3DEP 1 m lidar: level under 2%, gentle to 4% (most rigs level on blocks), sloped to 8% (fine for a tent), steep beyond.
Cell coverage is from the FCC Broadband Data Collection (carrier filings as downloaded May 2026): each site is tested against each carrier’s modelled outdoor 4G/5G coverage. It is what the carriers report, not a measured signal.
Weather is NOAA’s 1991–2020 climate normals for the campground. Sites and facts are from Recreation.gov’s open data (July 2026). Map imagery: USGS The National Map.
From the campground’s Recreation.gov listing: “Modoc Campground has many facilities that every camper can enjoy! The gatehouse has friendly camp hosts and information about the campground and local area. There are four bathhouses spread throughout the campground that have flush toilets and showers. The boat ramp and courtesy dock are conveniently placed with lots of parking. For the young campers, there is a playground on the first loop with a bathhouse conveniently next to it. For campers of all ages, there is a shaded hiking trail that winds through the campground showcasing the beautiful pine and hardwood trees. For camper convenience, there is a dump station and dumpsters located in the campground. Water/ Land: Modoc Campground is on the shoreline of the J Strom Thurmond Lake that is over 70,000 acres, and surrounded with a mix of pine and hardwood trees which offer shade and visual interest. Wildlife: Wildlife is abundant around the lake. Visitors regularly see southern bald eagles, migratory waterfowl, neo-tropical birds, wild turkeys, and whitetail deer.”
Page data as of October 15, 2026. Full source notes are in each layer’s info in the app.