Openings · last 7 days
42
Booking reality
Campsite Sniper detected 42 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-233489
When Downstream (MT) reopens
Downstream (MT)'s openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
85
Openings · last 90 days
87
Weekday pattern
Detected openings by day of week · 90dNo strong weekday pattern is evident in the openings Campsite Sniper has detected: 87 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 02:00 and 03:00 local-time hours. Those hours contained 28 of 87 detected openings (32.2%). Hours show when Campsite Sniper first detected each opening, in Mountain 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 5 days before the stay date; the middle 50% land 1.5–12 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 |
|---|---|---|
| 12 | 9 | 10.3% |
| 32 | 7 | 8.0% |
| 48 | 6 | 6.9% |
| 14 | 5 | 5.7% |
| 10 | 5 | 5.7% |
Site 12 had the most detected openings in the last 90 days: 9. One free watch covers every site here.
02 · Availability Outlook · Sep 18, 2026 – Mar 19, 2027 · of 86 monitored sites
Of the 1,387 tracked site-nights (Sep 18, 2026 – Mar 19, 2027): 827 open for online reservation · 239 reserved · 52 closed · 269 unavailable (cause unspecified).
Where the open windows are
40.4% of tracked site-nights are not currently open for online reservation. 827 of 1,387 remain open; here is where they are.
Load status
Sep 18, 2026 – Mar 19, 2027Not open online40.4%
Open site-nights827 / 1,387
Reserved (of online inventory)239 / 1,066
Weekday openings468
Weekend openings359
Of the open site-nights on mapped sites, 468 fall on weekdays and 359 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Mar 2027October shows no online availability. 0 of 69 tracked site-nights are open there — 69 unavailable.
Holiday windows
Sites open per night · of 84 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 | |
| Thanksgiving | THU Nov 26 | 0 | None open |
| FRI Nov 27 | 0 | None open | |
| SAT Nov 28 | 0 | None open | |
| Christmas | THU Dec 24 | 0 | None open |
| FRI Dec 25 | 0 | None open | |
| New Year | THU Dec 31 | 0 | None open |
| FRI Jan 1 | 0 | None open |
Labor Day: no online availability on any tracked night. Thanksgiving: no online availability on any tracked night. Christmas: no online availability on any tracked night. New Year: no online availability on any tracked night.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| 02 | 13 |
| 04 | 13 |
| 06 | 13 |
| 11 | 13 |
| 13 | 13 |
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 dateFri · Sep 18
Next open weekendFri · Sep 18
October0 of 69 · unavailable
The next bookable night is Sep 18; the first open weekend starts Sep 18. Campsite Sniper can watch later dates for you.
Stays and site detail
827 open site-nights across 82 sites at Downstream (MT), from the same hourly snapshot as everything above.
Multi-night stays. 99 2-night, 90 3-night, 55 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 18 at site 02.
RV length. Longest recorded site here is 90 ft. 84 sites take 25 ft, 72 sites take 35 ft, 72 sites take 40 ft.
Showing 60 of 82 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 02 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 04 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 06 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 11 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 13 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 14 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 15 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 19 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 20 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 22 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 29 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 34 | 45 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 35 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 41 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 45 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 46 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 50 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 51 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 53 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 55 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 56 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 59 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 61 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 63 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 64 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 65 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 66 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 67 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 69 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 71 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 72 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 73 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 75 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 76 | 25 ft | None | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 80 | 45 ft | Yes | 13 | 13 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +1 more |
| 12 | 45 ft | Yes | 12 | 9 nights | Sep 18, Sep 19, Sep 20, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 27 | 45 ft | Yes | 12 | 7 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 30 | 45 ft | Yes | 12 | 7 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 32 | 45 ft | Yes | 12 | 12 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 |
| 47 | 45 ft | Yes | 12 | 12 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 |
| 48 | 45 ft | Yes | 12 | 12 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 |
| 62 | 45 ft | Yes | 12 | 8 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 77 | 45 ft | Yes | 12 | 7 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 09 | 45 ft | Yes | 11 | 10 nights | Sep 19, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 21 | 45 ft | Yes | 11 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 24 | 45 ft | Yes | 11 | 10 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 30 |
| 25 | 45 ft | Yes | 11 | 6 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 43 | 45 ft | Yes | 11 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 49 | 45 ft | Yes | 11 | 9 nights | Sep 19, Sep 20, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 52 | 45 ft | Yes | 11 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 58 | 45 ft | Yes | 11 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 60 | 45 ft | Yes | 11 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 68 | 25 ft | None | 11 | 7 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 74 | 25 ft | None | 11 | 6 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 82 | 45 ft | Yes | 11 | 9 nights | Sep 19, Sep 20, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 39 | 45 ft | Yes | 10 | 10 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 17 | 45 ft | Yes | 9 | 6 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 28, Sep 29, Sep 30 |
| 28 | 45 ft | Yes | 9 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 54 | 45 ft | Yes | 9 | 6 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 28, Sep 29, Sep 30 |
| 05 | 45 ft | Yes | 8 | 4 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
About Downstream (MT)
Overview
Downstream Campground is located just below Fort Peck Dam on the Missouri River in northeastern Montana. Recreation enthusiasts and sportsmen enjoy the beauty of Fort Peck Lake's 1,500 miles of shoreline. A variety of high quality outdoor activities are available, including camping, boating, fishing, hunting, sightseeing and wildlife viewing.
Fort Peck Dam , which impounds Fort Peck Lake is the first dam built in the upper Missouri River Basin. The area surrounding Fort Peck was first charted by Lewis and Clark in 1804, and the pristine natural condition of the river and surrounding area awed the renowned explorers. When President Franklin D. Roosevelt authorized the Fort Peck project in 1933, thousands of people from all over the country migrated to Montana during the midst of the Great Depression in hopes of earning a living. Today, Fort Peck Lake is a sportsman's paradise with excellent fishing, wildlife viewing and other countless outdoor recreation opportunities.
For more information, visit the Fort Peck Project Website or call 406-526-3411.
Recreation
The vast size of Fort Peck Lake and its remoteness from major population centers provide a variety of high quality outdoor experiences. Popular recreation activities include camping, boating, fishing, hunting, sight-seeing, picnicking, biking, hiking, photography, watching wildlife and just relaxing.
Fort Peck Lake: Fifteen hundred miles of pristine shoreline serve as a haven for those wishing to get away from the stresses of modern life. There are 27 recreation areas located around the reservoir. The areas near and around the dam offer paved roads, electricity, showers and playgrounds while facilities around the rest of the lake are more primitive with gravel roads, picnic tables and vault toilets. Access roads to many of the remote areas may be impassable in inclement weather.
Fishing: Fort Peck Lake enjoys nationwide recognition as a hot spot for walleye fishing. Fort Peck Lake provides excellent boating and fishing opportunities. The lake also offers excellent fishing for sauger, smallmouth bass, lake trout, chinook salmon and northern pike. The introduction of cisco as a forage fish in 1983 proved successful and has increased both the size and number of game fish.
Wildlife Viewing/Hunting: The Fort Peck Lake Area and the Charles M. Russell Wildlife Refuge provide superb hunting of deer, elk, big horn sheep, and prong horn. The Missouri River Breaks are known for producing large elk and other game animals. Trails: Three miles of paved nature trails wind along the Missouri River and through the surrounding wooded area. This trail area is a popular birding and wildlife viewing area.
Disc Golf Course: A disc golf course "The Fortress" was installed in summer of 2021. Discs are available to check out at the gate house.
Interpretive Center & Museum: The Fort Peck Dam Interpretive Center and Museum offers displays of wildlife dioramas, aquariums, dinosaur fossils and dam construction history. Open Saturdays 9am to 4pm through September 2025.
Facilities
Downstream Campground offers 86 family campsites, 71 of which have electrical hookups; 16 sites are tent-only. One large group campsite is available with electrical hookups. The campground offers flush and vault toilets, showers, playgrounds, cornhole boards, a basketball court and horseshoe pits. A dump station is available on-site.
Natural Features
A shady grove of cottonwoods covers the grassy campground, making Downstream a pleasant place during the heat of the summer. In autumn, the leaves turn a beautiful golden yellow. Three fishing ponds, including scenic Winter Harbor, dot the landscape below the dam.
Nearby Attractions
Fort Peck Lake is a Montana treasure for its vast size and outdoor recreation opportunities. Six recreation areas within a few miles of the dam provide access for water sports, fishing and hunting. The Fort Peck Interpretive Center and Museum , is located just downstream of Fort Peck Dam. For more information, call 406-526-3493. The Leo B. Coleman Wildlife Pasture , located just outside the Town of Fort Peck and Downstream Campground is home to Fort Peck's Bison Herd and provides an excellent wildlife viewing auto route. The Historic Fort Peck Theater is located in the town of Ft. Peck is a popular historic destination in summer months. The 1.1 million acre Charles M. Russell National Wildlife Refuge surrounds Fort Peck Lake and helps preserve the natural habitat for numerous wildlife species.
86 monitored sitesRVs up to 90 ft71 with hookups66 shadedPets OKFire pitsMax party 100
Getting there
From Nashua, MT, travel on Highway 117 south for 10.5 miles continue straight onto Yellowstone Rd for 1 mile and the campground will be on the left. From Glasgow, MT, travel on Highway 24 south for 18 miles to Fort Peck Dam. Turn Left onto Highway 117 travel 2.5 miles. Turn right at intersection onto Yellowstone Rd continue 1 mile and the campground will be on the left. From Interstate 94, Glendive/Circle exit, take MT highway 200 west to MT highway 24 north 55 miles; turn right onto Yellowstone Rd drive 1.5 miles and campground will be on the right.
U.S. Army Corps Of Engineers, Fort Peck, MT 59223406-526-3224
AmphitheaterBikingBirdingBoatingCampingDay Use AreaDisc GolfEnvironmental EducationFish HatcheryFishingHikingHistoric & Cultural SiteObservation SitePhotographyRecreational ShootingStar GazingVisitor CenterWater Activities
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-233489 · facility + sites
Photo gallery
Roll CS-233489 · Downstream (MT) · Fort Peck MT12 frames · facility + sites
FAQ
How do I get a reservation at Downstream (MT)?
Reservations for Downstream (MT) are made through Recreation.gov. 827 of 1,387 tracked site-nights are currently open (59.6%). Campsite Sniper has also detected 87 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 Downstream (MT)?
Campsite Sniper detected 42 site-date openings at Downstream (MT) in the last 7 days, 85 over 30 days and 87 over the last 90.
Can I get a multi-night stay at Downstream (MT)?
90 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 18 at site 02. Confirm and book on Recreation.gov.
Which sites at Downstream (MT) fit a 35-foot RV?
72 of the 84 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 90 ft.
Which month has the most availability at Downstream (MT)?
September 2026, with 827 open site-nights in the current snapshot of 1,118.
How far ahead of a stay do openings appear at Downstream (MT)?
Half of the openings Campsite Sniper detected appeared at least 5 days before the stay date; the middle 50% landed 1.5-12 days out. Campsite Sniper can monitor future changes for dates you select.
When is the next open date at Downstream (MT)?
As of the Sep 18, 2026 snapshot: the next open date is Fri, Sep 18 and the next open weekend starts Fri, Sep 18. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
Stop refreshing. Let the app watch it.
Filter
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
Watch
We run paced availability checks for Downstream (MT). One watch covers every matching site.
Get the ping
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.