Openings · last 7 days
130
Booking reality
Campsite Sniper detected 130 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-234329
When Twin Lakes Campground reopens
Twin Lakes Campground's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
262
Openings · last 90 days
289
Weekday pattern
Detected openings by day of week · 90dNo strong weekday pattern is evident in the openings Campsite Sniper has detected: 289 openings spread across the week.
Hour-of-day pattern
First detected by hour · local time · last 90 daysThe largest concentrations of detected openings were first detected during the 12:00 and 19:00 local-time hours. Those hours contained 63 of 289 detected openings (21.8%). Hours show when Campsite Sniper first detected each opening, in Pacific Time, not when the change was made upstream.
Lead-time profile
Days before stay date · percentilesHalf of the openings Campsite Sniper detected appeared at least 14 days before the stay date; the middle 50% land 6–29 days out. Set an alert if you want Campsite Sniper to monitor future openings.
Highest-churn sites
Most openings · 90d| Site | Openings | Share of all openings |
|---|---|---|
| 041 | 10 | 3.5% |
| 090 | 9 | 3.1% |
| 080 | 9 | 3.1% |
| 087 | 9 | 3.1% |
| 031 | 8 | 2.8% |
Site 041 had the most detected openings in the last 90 days: 10. One free watch covers every site here.
02 · Availability Outlook · Sep 18 – Oct 11, 2026 · of 93 monitored sites
Of the 2,232 tracked site-nights (Sep 18 – Oct 11, 2026): 312 open for online reservation · 1,918 reserved · 2 on sites not offered for online reservation (first-come, first-served or administrative).
Where the open windows are
86% of tracked site-nights are not currently open for online reservation. 312 of 2,232 remain open; here is where they are.
Load status
Sep 18 – Oct 11, 2026Not open online86%
Open site-nights312 / 2,232
Reserved (of online inventory)1,918 / 2,230
Weekday openings253
Weekend openings59
Of the open site-nights on mapped sites, 253 fall on weekdays and 59 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Oct 2026October holds the most room. 186 of 1,023 site-nights are still open there.
Holiday windows
Sites open per night · of 93 sites| Window | Night | Sites open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open |
Labor Day: no online availability on any tracked night.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| 071 | 10 |
| 021 | 8 |
| 041 | 8 |
| 093 | 8 |
| 055 | 7 |
The 5 sites with the most open site-nights in the current snapshot. Pair a bookable date with a free alert to cover everything else.
Next windows
As of Sep 18, 2026 snapshotNext open dateSun · Sep 20
Next open weekendFri · Oct 9
The next bookable night is Sep 20; the first open weekend starts Oct 9. Campsite Sniper can watch later dates for you.
Stays and site detail
312 open site-nights across 86 sites at Twin Lakes Campground, from the same hourly snapshot as everything above.
Multi-night stays. 77 2-night, 40 3-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 20 at site 080.
RV length. Longest recorded site here is 55 ft. 90 sites take 25 ft, 54 sites take 35 ft, 36 sites take 40 ft.
Showing 60 of 86 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 071 | 49 ft | None | 10 | 5 nights | Sep 20, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 5, Oct 6, Oct 7, Oct 8 |
| 021 | 38 ft | None | 8 | 5 nights | Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 |
| 041 | 48 ft | None | 8 | 4 nights | Sep 28, Sep 29, Sep 30, Oct 1, Oct 5, Oct 6, Oct 7, Oct 8 |
| 093 | 41 ft | None | 8 | 5 nights | Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 |
| 055 | 40 ft | None | 7 | 4 nights | Sep 21, Sep 22, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7 |
| 063 | 34 ft | None | 7 | 3 nights | Sep 20, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6 |
| 078 | 39 ft | None | 7 | 4 nights | Sep 24, Sep 29, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7 |
| 087 | 38 ft | None | 7 | 5 nights | Sep 29, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 |
| 091 | 45 ft | None | 7 | 3 nights | Sep 20, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6 |
| 049 | 41 ft | None | 6 | 3 nights | Sep 20, Sep 28, Sep 29, Sep 30, Oct 7, Oct 8 |
| 050 | 50 ft | None | 6 | 4 nights | Sep 21, Sep 28, Sep 29, Sep 30, Oct 1, Oct 5 |
| 057 | 33 ft | None | 6 | 5 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4 |
| 072 | 41 ft | None | 6 | 3 nights | Sep 20, Sep 24, Oct 1, Oct 6, Oct 7, Oct 8 |
| 074 | 33 ft | None | 6 | 5 nights | Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 |
| 075 | 30 ft | None | 6 | 3 nights | Sep 21, Sep 22, Oct 1, Oct 6, Oct 7, Oct 8 |
| 080 | 35 ft | None | 6 | 3 nights | Sep 20, Sep 21, Sep 22, Sep 24, Oct 4, Oct 8 |
| 086 | 38 ft | None | 6 | 4 nights | Sep 29, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7 |
| 008 | 26 ft | None | 5 | 3 nights | Sep 28, Sep 29, Sep 30, Oct 4, Oct 8 |
| 017 | 38 ft | None | 5 | 2 nights | Sep 23, Sep 29, Sep 30, Oct 6, Oct 7 |
| 020 | 45 ft | None | 5 | 3 nights | Sep 23, Sep 30, Oct 4, Oct 5, Oct 6 |
| 035 | 50 ft | None | 5 | 4 nights | Oct 1, Oct 4, Oct 5, Oct 6, Oct 7 |
| 051 | 45 ft | None | 5 | 2 nights | Sep 20, Sep 21, Sep 29, Oct 6, Oct 7 |
| 054 | 33 ft | None | 5 | 3 nights | Sep 20, Sep 24, Oct 5, Oct 6, Oct 7 |
| 066 | 28 ft | None | 5 | 2 nights | Sep 20, Oct 4, Oct 5, Oct 7, Oct 8 |
| 073 | 30 ft | None | 5 | 4 nights | Oct 1, Oct 5, Oct 6, Oct 7, Oct 8 |
| 077 | 28 ft | None | 5 | 5 nights | Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 |
| 094 | 47 ft | None | 5 | 3 nights | Sep 28, Sep 29, Sep 30, Oct 4, Oct 5 |
| 002 | 30 ft | None | 4 | 3 nights | Sep 21, Oct 5, Oct 6, Oct 7 |
| 005 | 28 ft | None | 4 | 3 nights | Sep 28, Oct 6, Oct 7, Oct 8 |
| 007 | 26 ft | None | 4 | 3 nights | Oct 5, Oct 9, Oct 10, Oct 11 |
| 010 | 28 ft | None | 4 | 3 nights | Sep 23, Oct 4, Oct 5, Oct 6 |
| 011 | 32 ft | None | 4 | 2 nights | Sep 23, Oct 4, Oct 7, Oct 8 |
| 032 | 48 ft | None | 4 | 2 nights | Sep 30, Oct 1, Oct 4, Oct 5 |
| 040 | 40 ft | None | 4 | 2 nights | Sep 21, Sep 22, Sep 29, Sep 30 |
| 045 | 35 ft | None | 4 | 3 nights | Sep 27, Oct 5, Oct 6, Oct 7 |
| 062 | 20 ft | None | 4 | 2 nights | Sep 28, Sep 29, Oct 4, Oct 8 |
| 065 | 50 ft | None | 4 | 2 nights | Sep 30, Oct 1, Oct 4, Oct 5 |
| 090 | 39 ft | None | 4 | 2 nights | Sep 29, Sep 30, Oct 7, Oct 8 |
| 092 | 35 ft | None | 4 | 2 nights | Sep 21, Sep 30, Oct 1, Oct 8 |
| 006 | 28 ft | None | 3 | 1 night | Sep 27, Oct 4, Oct 8 |
| 009 | 28 ft | None | 3 | 3 nights | Oct 4, Oct 5, Oct 6 |
| 019 | 33 ft | None | 3 | 3 nights | Oct 4, Oct 5, Oct 6 |
| 025 | 30 ft | None | 3 | 2 nights | Sep 29, Oct 6, Oct 7 |
| 026 | 16 ft | None | 3 | 3 nights | Sep 29, Sep 30, Oct 1 |
| 027 | 42 ft | None | 3 | 3 nights | Sep 29, Sep 30, Oct 1 |
| 030 | 35 ft | None | 3 | 2 nights | Oct 4, Oct 5, Oct 8 |
| 044 | 40 ft | None | 3 | 2 nights | Sep 20, Sep 21, Oct 8 |
| 046C | 19 ft | None | 3 | 2 nights | Sep 21, Sep 30, Oct 1 |
| 047 | 45 ft | None | 3 | 2 nights | Oct 4, Oct 5, Oct 8 |
| 056 | 43 ft | None | 3 | 2 nights | Sep 20, Sep 21, Sep 29 |
| 064 | 29 ft | None | 3 | 2 nights | Sep 27, Sep 29, Sep 30 |
| 068 | 30 ft | None | 3 | 2 nights | Sep 20, Sep 30, Oct 1 |
| 079 | 47 ft | None | 3 | 2 nights | Sep 30, Oct 7, Oct 8 |
| 085 | 30 ft | None | 3 | 1 night | Sep 21, Sep 30, Oct 4 |
| 088 | 38 ft | None | 3 | 3 nights | Sep 29, Sep 30, Oct 1 |
| 001 | 30 ft | None | 2 | 1 night | Sep 29, Oct 7 |
| 016 | 28 ft | None | 2 | 1 night | Sep 23, Sep 30 |
| 018 | 33 ft | None | 2 | 1 night | Oct 4, Oct 8 |
| 022 | 42 ft | None | 2 | 1 night | Sep 30, Oct 6 |
| 023 | 36 ft | None | 2 | 2 nights | Sep 30, Oct 1 |
About Twin Lakes Campground
Overview
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.
Recreation
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.
Facilities
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.
Natural Features
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.
Nearby Attractions
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.
93 monitored sitesRVs up to 55 ftNo hookups88 shadedPets OKFire pitsMax party 6
Getting there
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.
BikingCampingFishingHikingHorseback Riding
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-234329 · facility + sites
Photo gallery
Roll CS-234329 · Twin Lakes Campground · CA12 frames · facility + sites
FAQ
How do I get a reservation at Twin Lakes Campground?
Reservations for Twin Lakes Campground are made through Recreation.gov. 86% of tracked site-nights are not currently open for online reservation; 312 of 2,232 remain open. Campsite Sniper has also detected 289 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.
Does Campsite Sniper book this campground for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 16:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
How often do new openings appear at Twin Lakes Campground?
Campsite Sniper detected 130 site-date openings at Twin Lakes Campground in the last 7 days, 262 over 30 days and 289 over the last 90.
Can I get a multi-night stay at Twin Lakes Campground?
40 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 20 at site 080. Confirm and book on Recreation.gov.
Which sites at Twin Lakes Campground fit a 35-foot RV?
54 of the 93 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 55 ft.
Which month has the most availability at Twin Lakes Campground?
October 2026, with 186 open site-nights in the current snapshot of 1,023.
How far ahead of a stay do openings appear at Twin Lakes Campground?
Half of the openings Campsite Sniper detected appeared at least 14 days before the stay date; the middle 50% landed 6-29 days out. Campsite Sniper can monitor future changes for dates you select.
When is the next open date at Twin Lakes Campground?
As of the Sep 18, 2026 snapshot: the next open date is Sun, Sep 20 and the next open weekend starts Fri, Oct 9. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
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