Mill Creek Campground
Sam Rayburn Reservoir · Texas · 109 sites
Photos: Recreation.gov
Overview
Mill Creek Campground is a US Army Corps of Engineers campground in Sam Rayburn Reservoir, Texas, with 109 sites in 5 loops. Mostly shady: most sites have good shade. Verizon and AT&T report coverage at every site; T-Mobile at 63 of 109.
80 of 109 sites shaded
16 of 109 sites in full sun
31 of 109 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
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Questions
Which sites at Mill Creek Campground are the shadiest?
Most of them. 80 of 109 sites have good shade, much of it from the afternoon sun; the other 29 are more open.
See the tree canopy in RoamWhich sites at Mill Creek Campground get the most sun?
Only a few. 16 of 109 sites are truly sunny and 13 more get some sun; the rest are shaded.
See the tree canopy in RoamWill Starlink work at Mill Creek Campground?
At some sites. About 31 of 109 sites have a clear gap in the trees for Starlink and 23 a partial one; the rest sit under 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 Mill Creek Campground are the most level?
23 of 109 sites are flat, and 39 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 63 ft.
See the slope at each site in RoamDoes Mill Creek Campground have cell service?
Mostly. Verizon and AT&T report coverage at every site; T-Mobile at 63 of 109. 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 Mill Creek Campground in October?
In October, expect highs around 80°F and lows around 55°F, with about 5.0 inches of rain over the month. Every month’s averages are in Roam Premium.
Open Mill Creek in RoamCampground facts
- Sites
- 109 in 5 loops
- Kinds
- 109 for RVs or trailers
- Hookups
- 109 with electric
- Longest rig
- 63 ft
- Elevation
- 165–180 ft
- Every site
- Picnic table · Pets allowed · Campfires allowed · Check-in 3 PM, check-out 2 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. Photos: Recreation.gov.
From the campground’s Recreation.gov listing: “The park features 110 campsites with water and electric hookups. There's also a group shelter, boat ramp, designated swimming beach (open Apr-Sep), a playground, and volleyball court for family entertainment. The campground is on the southeast shores of Sam Rayburn Reservoir. The lake boasts over 114,000 surface acres, making it the largest man-made lake that's completely located in Texas.”
Page data as of October 15, 2026. Full source notes are in each layer’s info in the app.