Openings · last 7 days
72
Booking reality
Campsite Sniper detected 72 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-233503
When Grant River reopens
Grant River's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
112
Openings · last 90 days
123
Weekday pattern
Detected openings by day of week · 90dNo strong weekday pattern is evident in the openings Campsite Sniper has detected: 123 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 03:00 and 07:00 local-time hours. Those hours contained 37 of 123 detected openings (30.1%). Hours show when Campsite Sniper first detected each opening, in Central 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 11 days before the stay date; the middle 50% land 3–23.5 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 |
|---|---|---|
| 15 | 12 | 9.8% |
| 44 | 10 | 8.1% |
| 52 | 7 | 5.7% |
| 55 | 7 | 5.7% |
| 62 | 7 | 5.7% |
Site 15 had the most detected openings in the last 90 days: 12. One free watch covers every site here.
02 · Availability Outlook · Sep 18 – Oct 24, 2026 · of 73 monitored sites
Of the 2,701 tracked site-dates (Sep 18 – Oct 24, 2026): 1,756 open for online reservation · 945 reserved.
Where the open windows are
35% of tracked site-dates are not currently open for online reservation. 1,756 of 2,701 remain open; here is where they are.
Load status
Sep 18 – Oct 24, 2026Not open online35%
Open site-dates1,756 / 2,701
Reserved (of online inventory)945 / 2,701
Weekday openings1,026
Weekend openings695
Of the open site-nights on mapped sites, 1,026 fall on weekdays and 695 on weekends (Fri–Sun). The split covers the 1,721 open site-nights on mapped sites; 1,756 site-dates are open across all monitored inventory.
Open dates by month
Sep 2026 – Oct 2026October holds the most room. 1,234 of 1,752 site-dates are still open there.
Holiday windows
Sites open per night · of 72 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.
Holiday windows — day use
Units open per date · of 1 day-use unit| Window | Date | Units 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 date.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| 09 | 37 |
| 64 | 37 |
| 65 | 37 |
| 67 | 37 |
| 70 | 37 |
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.
Availability by day-use unit
Most open reservation dates · tracked window| Unit | Open reservation dates |
|---|---|
| Shelter | 35 |
This day-use unit currently has 35 reservation dates available.
Next windows
As of Sep 18, 2026 snapshotNext open dateFri · Sep 18
Next open weekendFri · Sep 18
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
1,721 open site-nights across 72 sites at Grant River, from the same hourly snapshot as everything above.
72 overnight sites and 1 day-use unit are represented in the current inventory. Day-use inventory is excluded from every night-based figure on this page — site-nights, longest runs, multi-night stays, holiday stays and RV fit; its reservation dates are listed separately below.
Multi-night stays. 181 2-night, 149 3-night, 73 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 18 at site 09.
RV length. Longest recorded site here is 90 ft. 62 sites take 25 ft, 60 sites take 35 ft, 44 sites take 40 ft. 10 sites of 72 have no recorded maximum and are not counted.
Showing 60 of 72 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 09 | 35 ft | Yes | 37 | 37 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 +25 more |
| 64 | Not recorded | None | 37 | 37 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 +25 more |
| 65 | Not recorded | None | 37 | 37 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 +25 more |
| 67 | Not recorded | None | 37 | 37 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 +25 more |
| 70 | Not recorded | None | 37 | 37 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 +25 more |
| 71 | Not recorded | None | 37 | 37 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 +25 more |
| 72 | Not recorded | None | 37 | 37 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 +25 more |
| 73 | Not recorded | None | 37 | 37 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 +25 more |
| 69 | Not recorded | None | 36 | 28 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 27, Sep 28, Sep 29, Sep 30 +24 more |
| 56 | 45 ft | Yes | 35 | 35 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 +23 more |
| 10 | 35 ft | Yes | 34 | 28 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +22 more |
| 12 | 35 ft | Yes | 34 | 28 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +22 more |
| 21 | 45 ft | Yes | 34 | 28 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +22 more |
| 24 | 35 ft | Yes | 34 | 20 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 +22 more |
| 35 | 55 ft | Yes | 34 | 32 nights | Sep 18, Sep 19, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +22 more |
| 66 | Not recorded | None | 33 | 21 nights | Sep 18, Sep 19, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +21 more |
| 23 | 35 ft | Yes | 32 | 28 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +20 more |
| 25 | 45 ft | Yes | 32 | 24 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +20 more |
| 36 | 45 ft | Yes | 32 | 18 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 +20 more |
| 38 | 50 ft | Yes | 32 | 19 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 +20 more |
| 68 | Not recorded | None | 32 | 16 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 +20 more |
| 11 | 35 ft | Yes | 31 | 28 nights | Sep 18, Sep 19, Sep 20, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +19 more |
| 34 | 40 ft | Yes | 31 | 15 nights | Sep 18, Sep 19, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +19 more |
| 57 | 45 ft | Yes | 31 | 14 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +19 more |
| 58 | 40 ft | Yes | 30 | 26 nights | Sep 21, Sep 22, Sep 25, Sep 26, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 +18 more |
| 08 | 40 ft | Yes | 29 | 14 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +17 more |
| 22 | 40 ft | Yes | 29 | 19 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Oct 4, Oct 5 +17 more |
| 43 | 45 ft | Yes | 29 | 15 nights | Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +17 more |
| 06 | 45 ft | Yes | 28 | 14 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Oct 4, Oct 5, Oct 6 +16 more |
| 33 | 45 ft | Yes | 28 | 21 nights | Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 +16 more |
| 46 | 35 ft | Yes | 28 | 21 nights | Sep 20, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 +16 more |
| 20 | 45 ft | Yes | 26 | 14 nights | Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 +14 more |
| 39 | 45 ft | Yes | 26 | 11 nights | Sep 18, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +14 more |
| 44 | 35 ft | Yes | 26 | 6 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6 +14 more |
| 37 | 45 ft | Yes | 25 | 21 nights | Sep 19, Sep 22, Sep 25, Sep 26, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9, Oct 10, Oct 11 +13 more |
| 40 | 40 ft | Yes | 25 | 12 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6 +13 more |
| 59 | 35 ft | Yes | 25 | 20 nights | Sep 18, Sep 19, Sep 27, Sep 28, Sep 29, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9, Oct 10, Oct 11 +13 more |
| 16 | 40 ft | Yes | 24 | 19 nights | Sep 20, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7 +12 more |
| 19 | 45 ft | Yes | 24 | 14 nights | Sep 21, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7 +12 more |
| 42 | 55 ft | Yes | 24 | 14 nights | Sep 18, Sep 19, Sep 20, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 11, Oct 12 +12 more |
| 17 | 45 ft | Yes | 23 | 11 nights | Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 8 +11 more |
| 18 | 45 ft | Yes | 23 | 11 nights | Sep 20, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 +11 more |
| 15 | 35 ft | Yes | 22 | 7 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 4 +10 more |
| 31 | 50 ft | Yes | 22 | 13 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 4, Oct 12, Oct 13, Oct 14 +10 more |
| 07 | 40 ft | Yes | 21 | 12 nights | Sep 18, Sep 19, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 +9 more |
| 26 | 90 ft | Yes | 21 | 17 nights | Sep 27, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9, Oct 10, Oct 11, Oct 12, Oct 13, Oct 14 +9 more |
| 47 | 40 ft | Yes | 21 | 14 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 5, Oct 6, Oct 7, Oct 11, Oct 12, Oct 13, Oct 14, Oct 15 +9 more |
| 48 | 45 ft | Yes | 21 | 17 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9, Oct 10, Oct 11, Oct 12 +9 more |
| 63 | 35 ft | Yes | 20 | 10 nights | Sep 27, Sep 28, Sep 29, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9, Oct 10, Oct 15, Oct 16 +8 more |
| 41 | 55 ft | Yes | 19 | 12 nights | Sep 18, Sep 19, Sep 29, Oct 4, Oct 5, Oct 6, Oct 7, Oct 11, Oct 12, Oct 13, Oct 14, Oct 15 +7 more |
| 45 | 35 ft | Yes | 18 | 8 nights | Sep 20, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6 +6 more |
| 05 | 55 ft | Yes | 17 | 7 nights | Sep 22, Sep 23, Sep 24, Sep 25, Sep 29, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 11, Oct 12 +5 more |
| 27 | 45 ft | Yes | 17 | 5 nights | Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 14 +5 more |
| 29 | 55 ft | Yes | 17 | 11 nights | Sep 20, Sep 24, Sep 29, Sep 30, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9, Oct 10, Oct 11, Oct 12 +5 more |
| 02 | 30 ft | Yes | 16 | 8 nights | Sep 20, Sep 29, Sep 30, Oct 8, Oct 11, Oct 12, Oct 13, Oct 14, Oct 17, Oct 18, Oct 19, Oct 20 +4 more |
| 55 | 40 ft | Yes | 16 | 6 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Oct 4, Oct 5, Oct 13, Oct 14, Oct 15, Oct 16 +4 more |
| 14 | 35 ft | Yes | 15 | 5 nights | Sep 20, Sep 24, Sep 25, Sep 29, Sep 30, Oct 5, Oct 6, Oct 7, Oct 8, Oct 14, Oct 17, Oct 18 +3 more |
| 32 | 40 ft | Yes | 14 | 4 nights | Sep 24, Sep 29, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7, Oct 12, Oct 13, Oct 14, Oct 15, Oct 19 +2 more |
| 52 | 30 ft | Yes | 14 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 18, Oct 19, Oct 20 +2 more |
| 04 | 40 ft | Yes | 13 | 5 nights | Sep 18, Sep 29, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 11, Oct 12, Oct 19, Oct 20, Oct 21 +1 more |
Day-use inventory
35 available reservation dates across 1 day-use unit. Day-use inventory is reserved by the date, so it carries no stay length.
All 1 day-use unit with current availability
| Unit | Open reservation dates | Consecutive dates | Dates |
|---|---|---|---|
| Shelter | 35 | 28 dates | Sep 18, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +23 more |
About Grant River
Overview
Spread along the banks of the Upper Mississippi River, the Grant River Campground, located in the "Catfish Capital of Wisconsin," is a modern campground that offers a plethora of outdoor and recreational activities.
Recreation
The famous fishing on the Mississippi River draws crowds of anglers each year. The most popular species is the channel catfish, earning the city of Potosi the nickname "Catfish Capital of Wisconsin." Other species include bluegill, walleye, crappie, northern pike and bass. Best to try your luck in the spring before the rice field grows up.
There is boat ramp access within the campground, but can be chalenging for larger vessels as water levels drop and aquatic vegetation grows up.
Facilities
Picnic shelter and a playgrounds create an ideal environment for a small party or family get-together. Both tent and RV sites are available, and amenities like showers, drinking water and flush toilets offer a comfortable camping experience.
Natural Features
Surrounding the large campsite is a lush river landscape with towering bluffs and beautiful sunsets, creating a nature experience for visitors without losing the comforts of modern camping.
Nearby Attractions
Potosi Brewing Company Restauraunt & Museum (Potosi, WI - 2 miles)
Lock and Dam 11 (Dubuque, IA - 19 miles)
National Mississippi River Museum & Aquarium (Dubuque, IA - 20 miles)
Diamond Jo Casino & The Q Casino (Dubuque, IA - 20 miles)
Historic sites, Antiques, Fine Dining (Galena, IL - 28 miles)
73 monitored sitesRVs up to 90 ft62 with hookups65 shadedPets OKFire pitsMax party 6
Getting there
From WI-133, Turn East on River Lane (two miles south of Potosi) and follow the directional signs approximately two miles to the campground. From US-61/WI-35, Turn S on River Lane and follow directional signs to campground.
Grant River Recreation Area, Potosi, WI 53820RANGER OFFICE - 563-582-0881 / CAMPGROUND ENTRANCE STATION - 608-763-2140
BirdingCampingDay Use AreaEvening ProgramsFishingPicnickingWater Access
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-233503 · facility + sites
Photo gallery
Roll CS-233503 · Grant River · Potosi WI12 frames · facility + sites
FAQ
How do I get a reservation at Grant River?
Reservations for Grant River are made through Recreation.gov. 1,756 of 2,701 tracked site-dates are currently open (65%). Campsite Sniper has also detected 123 site openings here in the last 90 days, so further dates may appear. Pick a site or unit 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 facility 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 15:19 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 Grant River?
Campsite Sniper detected 72 site-date openings at Grant River in the last 7 days, 112 over 30 days and 123 over the last 90.
Can I get a multi-night stay at Grant River?
149 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 09. Confirm and book on Recreation.gov.
Which sites at Grant River fit a 35-foot RV?
60 of the 72 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 90 ft. 62 of those 72 sites have a recorded maximum length and 10 do not; they are not counted as fitting.
Which month has the most availability at Grant River?
October 2026, with 1,234 open site-dates in the current snapshot of 1,752.
How far ahead of a stay do openings appear at Grant River?
Half of the openings Campsite Sniper detected appeared at least 11 days before the stay date; the middle 50% landed 3-23.5 days out. Campsite Sniper can monitor future changes for dates you select.
When is the next open date at Grant River?
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.
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