CA-158 swings off US-395 and strings June Lake, Gull Lake and Silver Lake along one loop of road, so the whole trip runs lake to lake. Aspen and pine come right down to the water at 7,600 feet, and granite peaks of 11,000 and 12,000 feet crowd in behind. The rig stays put with the awning out, and the days go to a rod off the shore, the beach, and a slow drive around to the next lake.
Above June Lake's swimming beach, Oh! Ridge spreads over the rise, and the afternoons turn into a walk down to the water and back up for dinner. The Forest Service campground has room for a vehicle up to 40 feet, drinking water, flush toilets and a 14-day stay limit, plus a bear locker at every site, which is where the food lives all week.
For the parked week with everything connected, the loop has two RV parks. June Lake RV Park is a walk from both June Lake and Gull Lake, set back from the shore, with sewer, water, electric and cable TV at every site and no tent camping. Farther around CA-158, Silver Lake tucks in close under the peaks, where the resort runs its RV park under an Inyo National Forest permit. Every site there has full hookups with water, sewer and 30-amp power, and open wood fires aren't allowed.
June Lake Campground is the loop's smaller Forest Service camp, down by June Lake with a bear locker at each site. It's nonelectric, it allows one RV with a tow per site, and it books through Recreation.gov. For two people who'd rather slip into one of its sites without hauling anything, a campervan is the size down.
Nights at June Lake Campground run on the rig's own tanks and battery, and the full-hookup parks at Silver Lake and June Lake RV Park are where the tanks get emptied. A week that mixes the two usually saves a hookup night for the end, so the rig leaves the loop empty.
Book the campsite first and the rig second, because summer on the loop is popular and the pad you land decides the rest: a long Forest Service site at Oh! Ridge, a full hookup at one of the RV parks, or a smaller nonelectric site that a trailer and its tow vehicle have to share.
Mammoth Lakes and Mammoth Mountain RV Park, down US-395
South on US-395, Mammoth Lakes is the bigger mountain town, and plenty of families base there and drive up to the loop for the lake days. Mammoth Mountain RV Park is right in town across from the ranger station, with its full-hookup sites on dirt pads under the trees. Those sites carry 30- and 50-amp power, water, sewer and cable, with a three-night minimum and reservations up to a year ahead.
It's the easy first night for anyone coming up from the south or down off Tioga Road, and the Santa Clarita RV page covers the drive up US-395. From the park, the Lakes Basin and Twin Lakes are short drives up the hill. The longer day goes to Devils Postpile and Reds Meadow, where a cliff of gray basalt columns stands packed together like organ pipes. The monument's own campground has been closed since 2016, so the Postpile works as a day out from the Mammoth pad.
Mono Lake, Bodie and Tioga Road, north of the loop
North of the loop, Mono Lake spreads wide and flat below the Sierra, a salt lake with tufa towers standing out of the water and along the shore like drip castles. The boardwalk at the county park is closed until further notice after the Inn Fire, as of September 2026.
Bodie fills the rest of the day, a gold-rush town left standing on the sagebrush flats east of US-395, its one long street lined with weathered wooden buildings. SR-270 is paved for 10 miles and then runs 3 unsurfaced miles that can be rough, and that last stretch is washboard. If a trailer was delivered to your pad on the loop, the family car is the easy way to make this day. In a motorhome, take the washboard slow and sleep back at June Lake.
Tioga Road climbs west out of the basin into Yosemite's high country, past Tuolumne Meadows, and makes a full day out and back from the loop. Yosemite Valley is a different trip, and the California RV page takes the rig there.