Pick a site on the map to see its site map.
The site details and map below come from the public Recreation.gov record and are accurate. For current dates and to book, go to Recreation.gov.
No strong weekday pattern is evident in the openings Campsite Sniper has detected: 542 openings spread across the week.
The largest concentrations of detected openings were first detected during the 09:00 and 11:00 local-time hours. Those hours contained 110 of 542 detected openings (20.3%). Hours show when Campsite Sniper first detected each opening, in Pacific Time, not when the change was made upstream.
Half of the openings Campsite Sniper detected appeared at least 6 days before the stay date; the middle 50% land 3–12 days out. Set an alert if you want Campsite Sniper to monitor future openings.
| Site | Openings | Share of all openings |
|---|---|---|
| 031 | 14 | 2.6% |
| 047 | 14 | 2.6% |
| 080 | 14 | 2.6% |
| 021 | 13 | 2.4% |
| 048 | 13 | 2.4% |
Site 031 had the most detected openings in the last 90 days: 14. One free watch covers every site here.
Twin Lakes Campground is located in the eastern Sierra Nevada Mountains near the town of Mammoth Lakes, California. It offers lakeside camping with breathtaking scenery and many outdoor activities. The lake is a great base for fishing, boating, viewing waterfalls and hiking, and offers close proximity to the town's amenities.
The eastern Sierras are known for great trout fishing, and the 108-acre lakes are a prime location for it. Anglers can cast for rainbow, brook and brown trout while watching a waterfall tumble into the lake. The calm waters are also inviting for canoes and kayaks. Power boats must have electric motors.
Several trails offer a variety of hikes nearby, including a 4-mile trail on Mammoth Mountain and two shorter nature trails along the lakes.
Families enjoy attending educational programs scheduled throughout the summer.
This is a large facility with campsites split into two sections on either side of Twin Lakes. Sections 1 and 2 are on the west side, closer to the shore. Section 3 is set upon a hill. Picnic tables, campfire rings, flush toilets and drinking water are provided.
Campers can walk to the facility's general store for boat rentals, camping supplies and showers.
The campground is forested with lodgepole pine, providing partial shade and a private setting. It sits at an elevation of 8,600 feet at the base of snow-capped, 11,059' Mammoth Mountain, a popular skiing destination. A cascading waterfall flows into one of the lakes.
The mountains are abundant with wildlife, including black bear, mountain lions, mule deer, pine marten, pika and many species of fish and birds.
Mammoth Lakes Basin contains several additional popular lakes to explore for fishing and boating, and Mammoth Mountain Ski Resort offers year-round recreation.
Visitors can also access the magnificent John Muir Wilderness nearby, which stretches 100 miles along the crest of the Sierra Nevadas, a land of lofty snow-capped mountains, deep canyons and vast expanses of glacially-carved terrain. Abundant hiking and horseback riding trails are available.
The campground is 320 miles north of Los Angeles and 180 miles south of Reno, Nevada. Follow U.S. Highway 395 to the junction of State Highway 203. Turn west on 203 and drive 7 miles through the town of Mammoth Lakes. Highway 203 becomes Main Street, and then becomes Lake Mary Road, which leads to the Lakes Basin. Continue on Lake Mary Road to the Twin Lakes cutoff.
View on Recreation.gov ↗ Get directions ↗












Online reservations for this facility, where offered, are made through Recreation.gov. Campsite Sniper has also detected 542 site openings here in the last 90 days, so further dates may appear. Pick a site on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
Campsite Sniper does not currently hold availability data for Twin Lakes Campground, so there is nothing to date here. That is a gap in coverage — it does not mean the facility is full or closed. Check Recreation.gov for current dates.
Campsite Sniper detected 542 site-date openings here over the last 90 days, none in the last 7. A free alert watches around the clock and pings you the moment one appears.
54 of the 93 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 55 ft.
Half of the openings Campsite Sniper detected appeared at least 6 days before the stay date; the middle 50% landed 3-12 days out. Campsite Sniper can monitor future changes for dates you select.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We run paced availability checks for Twin Lakes Campground. One watch covers every matching site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.