Jumbo Rocks Campground
Joshua Tree National Park · California · 119 sites
Photos: National Park Service via Recreation.gov
Overview
Jumbo Rocks Campground is a National Park Service campground in Joshua Tree National Park, California, with 119 sites. No shade: open sky at every site. No carrier reports coverage at any site.
0 of 119 sites shaded
119 of 119 sites in full sun
119 of 119 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 Jumbo Rocks Campground are the shadiest?
None. Jumbo Rocks Campground is open sky — bring your own shade.
See the tree canopy in RoamWhich sites at Jumbo Rocks Campground get the most sun?
Plenty. All 119 sites are open to the south and the sky — easy for solar panels, and warm on cool mornings.
See the tree canopy in RoamWill Starlink work at Jumbo Rocks Campground?
Easy here. All 119 sites have open sky for a Starlink dish. 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 Jumbo Rocks Campground are the most level?
9 of 119 sites are flat, and 48 more have a gentle slope most RVs can level with blocks; 62 are steeper, better for tents. Sites that take RVs or trailers fit rigs up to 45 ft.
See the slope at each site in RoamDoes Jumbo Rocks Campground have cell service?
Not really. None of T-Mobile, Verizon or AT&T reports coverage at any site at Jumbo Rocks Campground, so plan to be offline here. 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 Jumbo Rocks Campground in October?
In October, expect highs around 75°F and lows around 49°F, with about 0.5 inches of rain over the month. Every month’s averages are in Roam Premium.
Open Jumbo Rocks in RoamCampground facts
- Sites
- 119
- Kinds
- 45 for RVs or trailers · 74 tent-only
- Hookups
- None
- Longest rig
- 45 ft
- Accessible
- 1 site
- Elevation
- 4,306–4,399 ft
- Every site
- Picnic table · Pets allowed · Campfires allowed · Check-in 12 PM, check-out 12 PM
- Managed by
- National Park Service
- 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: “This large facility has 124 individual tent and RV campsites. There are no hookups or drinking water in the campground, however the town of Twentynine Palms is 12 miles away and provides basic amenities. The park allows six people and two vehicles per site, however, some sites are small and may not accommodate the maximum number of people and vehicles. See site details for specifics. Campsites are nestled on a flat, sandy surface between large boulders that tower in unique shapes over the campground and rise up from the otherwise uniform desert landscape. The rocks were formed by volcanic activity millions of years ago and have been exposed and shaped by wind and water over time. They brighten with soft pastel hues during the morning and evening sunlight and low with campfire light by night.”
Page data as of October 15, 2026. Full source notes are in each layer’s info in the app.