Pick a site on the map to see its availability calendar.
Saturday accounted for the largest share of the openings Campsite Sniper detected. 32 of 69 openings detected in the last 90 days occurred on a Saturday (46.4%), with Wednesday (11) and Friday (8) next in line.
The largest concentrations of detected openings were first detected during the 09:00 and 13:00 local-time hours. Those hours contained 36 of 69 detected openings (52.2%). 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 13 days before the stay date; the middle 50% land 5–20 days out. Set an alert if you want Campsite Sniper to monitor future openings.
| Site | Openings | Share of all openings |
|---|---|---|
| 001 | 20 | 29.0% |
| 002 | 20 | 29.0% |
| 008 | 11 | 15.9% |
| 010 | 8 | 11.6% |
| 009 | 6 | 8.7% |
Site 001 had the most detected openings in the last 90 days: 20. One free watch covers every site here.
Of the 1,830 tracked site-nights (Sep 18, 2026 – Mar 19, 2027): 1,388 open for online reservation · 130 reserved · 312 not yet released.
Of the open site-nights on mapped sites, 827 fall on weekdays and 561 on weekends (Fri–Sun).
January holds the most room. 248 of 310 site-nights are still open there.
| 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 | |
| Thanksgiving | THU Nov 26 | 7 | Open |
| FRI Nov 27 | 7 | Open | |
| SAT Nov 28 | 7 | Open | |
| Christmas | THU Dec 24 | 8 | Open |
| FRI Dec 25 | 8 | Open | |
| New Year | THU Dec 31 | 8 | Open |
| FRI Jan 1 | 8 | Open |
Labor Day: no online availability on any tracked night. Thanksgiving: 7 sites are available for the complete three-night stay. Christmas: 8 sites are available for the complete two-night stay. New Year: 8 sites are available for the complete two-night stay.
| Site | Open site-nights |
|---|---|
| 004 | 177 |
| 006 | 174 |
| 005 | 172 |
| 008 | 172 |
| 007 | 169 |
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.
The next bookable night is Sep 19; the first open weekend starts Sep 19. Campsite Sniper can watch later dates for you.
Multi-night stays. 44 2-night, 41 3-night, 23 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 19 at site 001.
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 004 | Not recorded | None | 177 | 167 nights | Sep 20, Sep 21, Sep 22, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 4, Oct 5 +165 more |
| 006 | Not recorded | None | 174 | 161 nights | Sep 20, Sep 21, Sep 22, Sep 26, Sep 27, Sep 28, Sep 29, Oct 2, Oct 4, Oct 5, Oct 6, Oct 7 +162 more |
| 005 | Not recorded | None | 172 | 146 nights | Sep 21, Sep 22, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 4, Oct 5, Oct 6 +160 more |
| 008 | Not recorded | None | 172 | 146 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5 +160 more |
| 007 | Not recorded | None | 169 | 97 nights | Sep 22, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9 +157 more |
| 003 | Not recorded | None | 168 | 96 nights | Sep 22, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 4, Oct 5, Oct 6, Oct 7 +156 more |
| 010 | 22 ft | None | 161 | 125 nights | Sep 20, Sep 24, Sep 30, Oct 1, Oct 2, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 11, Oct 12 +149 more |
| 009 | 22 ft | None | 144 | 97 nights | Sep 20, Sep 24, Oct 1, Oct 7, Oct 8, Oct 15, Oct 21, Oct 22, Oct 25, Oct 26, Oct 27, Oct 28 +132 more |
| 001 | Not recorded | None | 26 | 26 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 +14 more |
| 002 | Not recorded | None | 25 | 25 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +13 more |
Merced River Recreation Management Area Overview
The Merced River Recreation Area is a special place just downstream from Yosemite. It is well known for excellent whitewater boating, wildflower viewing, camping, swimming, and recreational gold panning/prospecting.
Visitors will have plenty to do in the Merced River Recreation Area during every season. Springtime comes early to the Merced River Canyon and by March the wildflower season is well on its way—lasting into May. Easy access, un-damned flows, and excellent whitewater boating attract rafters and kayakers during the spring runoff (April through July). Commercial rafting trips are available from the following BLM permitted outfitters: All Outdoors, ARTA, OARS, and Zephyr (Contact outfitters directly for more information) . It is a very popular swimming destination during the hot California foothill summers with some of the clearest swimming holes around. Gold panning and prospecting have never fallen out of favor since the 1850’s when this canyon had a large mining population. In autumn the crowds subside and the Merced River Recreation Area provides more solitude while still offering most of the appeal and activities as earlier in the year. By winter, true solitude can be found. The weather is usually quite warm and sunny between storms. Daytime highs in the 60’s and overnight lows in the 30’s are common.
While some activities are best in specific seasons, there are many things to do all year long. Bird watching is good throughout the area most of the year. Fishing is popular for trout and bass along the entire river. Biking along the gravel roads and trails is popular with families and experienced mountain bikers alike. Hiking is great anytime of the year. The Merced River Trail continues on downstream from the end of the campground River Road and brings hikers or bikers to the North Fork of the Merced and beyond. The Burma Grade is another popular route to explore on foot, bike, or high-clearance automobile. This scenic backroad climbs steeply out of the Merced Canyon and eventually leads to Greely Hill or Buck Meadows (CA-120).
McCabe Flat Campground Overview
After crossing the historic Briceburg Suspension Bridge, McCabe Flat Campground is 2.2 miles downstream along the Merced River Road. This is the first of three campgrounds operated by the Bureau of Land Management (BLM) along the Wild and Scenic Merced River. This is a popular destination campground during spring and summer.
McCabe Flat Campground has a large designated swimming area and beach. No dogs are allowed on the beach or swimming area! Dogs are allowed on leash at all other locations managed by BLM in the region.
There are eight (8) walk-in campsites and two (2) drive-up campsites. The walk-in sites are between 50 and 200 feet from the parking lot. An accessible crushed rock trail leads to each site. One of the two drive-up sites (#10) is a group campsite suitable for up to 20 people and 6 vehicles.
The Merced River Recreation Management Area was established because of the outstanding recreational opportunities found here. The proximity to Yosemite National Park attracts people from around the world to camp, boat, swim, and play along the Merced River.
Whitewater rafting opportunities are excellent with easy road-side access. Established launch sites upstream near El Portal are Redbud, Indian Flat, Old Suspension Bridge, and Briceburg Day-Use Area. Take-out locations include Briceburg Day Use Area, Railroad Flat Boat Ramp, and Bagby.
Hiking along the Merced River Trail/Old Yosemite Railroad Grade is good year around.
Camping along the Merced River has been a cherished recreational activity for generations of families for a hundred years. Picnicking, nature study, hobby gold prospecting, wildflower viewing, birding, mountain biking, and swimming are all popular recreational activities within the Merced River Recreation Management Area/Wild and Scenic Merced River.
Each of the three BLM Merced River Campgrounds includes the following features:
• Vault toilet(s), and seasonal port-o-potties
• Bearproof garbage cans.
• Bearproof recycling cans.
• Bearproof food locker in each site
• Picnic table in each site
• Fire ring in each site
• Bulletin board with local information, rules and regulations
• Parking areas.
• Recreation.gov fee system.
• McCabe Flat Campground has a designated swimming area—NO DOGS ALLOWED.
McCabe Flat Campground is situated on the shore of the Wild and Scenic Merced River. Nine (9) of the campsites are within 100 feet of the river. The Group Site is on the other side of the Old Yosemite Railroad Grade/Merced River Road; about 150 yards from the water. The river is the main natural feature here.
The Merced River Trail follows the Old Yosemite Railroad Grade past where cars can drive. This trail is spectacular during springtime (February-April)! It provides good access to more secluded swimming and fishing holes downstream from the campgrounds. This trail also provides access to the North Fork Merced where swimming and wildflower viewing is excellent in spring to early summer.
Wildflower viewing is great all along the Merced River. The best season to see the colorful display is February through April.
California Newts are common in this area. They are active in the winter and spring especially on wet days. They are slow moving docile creatures, but do not touch or pick them up. They have a neurotoxin in their skin that is poisonous to people and pets. Do not eat them.
Yosemite National Park is the main attraction in Mariposa County. The Arch Rock Entrance Station is 22.8 miles from McCabe Flat Campground (20 miles from Briceburg Visitor Center on CA-140).
California State Mining and Mineral Museum is located at the Mariposa County Fairgrounds--14.2 miles from the Briceburg Visitor Center.
Mariposa Museum and History Center is in downtown Mariposa 12 miles from Briceburg Visitor Center. 5119 Jessie St Mariposa, CA 95338
From Mariposa, take CA-140 east to Briceburg, where the highway first meets the Merced River. Turn into Briceburg and cross the Old Briceburg Suspension Bridge. Follow the Briceburg Road downstream 2.3 miles to McCabe Flat Campground. From Yosemite/El Portal, take CA-140 west (downstream) to Briceburg, where the highway starts to climb away from the Merced River. Turn into Briceburg and cross the Old Briceburg Suspension Bridge. Follow the Briceburg Road downstream 2.3 miles to McCabe Flat Campground.
View on Recreation.gov ↗ Get directions ↗












Reservations for McCabe Flat Campground are made through Recreation.gov. The current snapshot shows substantial availability: 1,388 of 1,830 tracked site-nights are open (75.8%), though availability can change. Campsite Sniper has also detected 69 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 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.
Campsite Sniper detected 53 site-date openings at McCabe Flat Campground in the last 7 days, 68 over 30 days and 69 over the last 90.
Saturday accounted for the largest share of the openings Campsite Sniper detected in the last 90 days: 32 of 69 (46.4%). Days reflect when Campsite Sniper first detected each opening, not when the change occurred upstream.
41 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 19 at site 001. Confirm and book on Recreation.gov.
No RV-analyzable site here has a recorded maximum of 35 ft or more; the longest recorded is 22 ft. 2 of those 10 sites have a recorded maximum length and 8 do not; they are not counted as fitting.
January 2027, with 248 open site-nights in the current snapshot of 310.
Half of the openings Campsite Sniper detected appeared at least 13 days before the stay date; the middle 50% landed 5-20 days out. Campsite Sniper can monitor future changes for dates you select.
As of the Sep 18, 2026 snapshot: the next open date is Sat, Sep 19 and the next open weekend starts Sat, Sep 19. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We run paced availability checks for McCabe Flat 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.