Openings · last 7 days
105
Booking reality
Campsite Sniper detected 105 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-232627
When Lock A reopens
Lock A's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
175
Openings · last 90 days
176
Weekday pattern
Detected openings by day of week · 90dNo strong weekday pattern is evident in the openings Campsite Sniper has detected: 176 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 21:00 local-time hours. Those hours contained 47 of 176 detected openings (26.7%). 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 10 days before the stay date; the middle 50% land 4.8–25 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 |
|---|---|---|
| 32 | 15 | 8.5% |
| 36 | 13 | 7.4% |
| 17 | 11 | 6.3% |
| 22 | 10 | 5.7% |
| 35 | 9 | 5.1% |
Site 32 had the most detected openings in the last 90 days: 15. One free watch covers every site here.
02 · Availability Outlook · Sep 18 – Oct 30, 2026 · of 44 monitored sites
Of the 1,892 tracked site-nights (Sep 18 – Oct 30, 2026): 411 open for online reservation · 1,481 reserved.
Where the open windows are
78.3% of tracked site-nights are not currently open for online reservation. 411 of 1,892 remain open; here is where they are.
Load status
Sep 18 – Oct 30, 2026Not open online78.3%
Open site-nights411 / 1,892
Reserved (of online inventory)1,481 / 1,892
Weekday openings292
Weekend openings119
Of the open site-nights on mapped sites, 292 fall on weekdays and 119 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Oct 2026October holds the most room. 249 of 1,320 site-nights are still open there.
Holiday windows
Sites open per night · of 44 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 |
|---|---|
| 41 | 31 |
| 42 | 30 |
| 40 | 27 |
| 44 | 25 |
| 39 | 24 |
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
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
411 open site-nights across 42 sites at Lock A, from the same hourly snapshot as everything above.
Multi-night stays. 78 2-night, 60 3-night, 4 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 18 at site 41.
RV length. Longest recorded site here is 40 ft. 31 sites take 25 ft, 21 sites take 35 ft, 16 sites take 40 ft. 7 sites of 44 have no recorded maximum and are not counted.
All 42 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 41 | Not recorded | Yes | 31 | 14 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 +19 more |
| 42 | Not recorded | Yes | 30 | 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 1 +18 more |
| 40 | Not recorded | Yes | 27 | 6 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 +15 more |
| 44 | Not recorded | Yes | 25 | 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 +13 more |
| 39 | Not recorded | Yes | 24 | 5 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 +12 more |
| 43 | Not recorded | Yes | 24 | 6 nights | Sep 18, Sep 19, Sep 21, Sep 22, Sep 23, Sep 24, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 +12 more |
| 14 | 40 ft | Yes | 17 | 5 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 27, Sep 28, Sep 29, Sep 30, Oct 18, Oct 19, Oct 20, Oct 21 +5 more |
| 07 | 40 ft | Yes | 14 | 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 14 +2 more |
| 09 | 28 ft | Yes | 14 | 6 nights | Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 18, Oct 19, Oct 20, Oct 25, Oct 26, Oct 27, Oct 28 +2 more |
| 13 | 24 ft | Yes | 13 | 4 nights | Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 13, Oct 14, Oct 21, Oct 22, Oct 25, Oct 26, Oct 27 +1 more |
| 22 | 25 ft | Yes | 12 | 7 nights | Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 6, Oct 7, Oct 8, Oct 15, Oct 30 |
| 45 | Not recorded | Yes | 12 | 4 nights | Sep 21, Sep 22, Oct 1, Oct 5, Oct 6, Oct 7, Oct 15, Oct 19, Oct 20, Oct 21, Oct 22, Oct 26 |
| 06 | 20 ft | Yes | 11 | 6 nights | Oct 18, Oct 19, Oct 20, Oct 21, Oct 22, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30 |
| 04 | 20 ft | Yes | 10 | 5 nights | Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 30 |
| 11 | 32 ft | Yes | 10 | 5 nights | Sep 20, Sep 21, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 6, Oct 7, Oct 18 |
| 12 | 28 ft | Yes | 10 | 6 nights | Sep 29, Sep 30, Oct 4, Oct 18, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30 |
| 21 | 30 ft | Yes | 10 | 5 nights | Sep 20, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 7, Oct 15, Oct 30 |
| 37 | 22 ft | Yes | 10 | 4 nights | Sep 20, Sep 27, Sep 28, Sep 29, Sep 30, Oct 4, Oct 5, Oct 20, Oct 25, Oct 30 |
| 15 | 32 ft | Yes | 9 | 2 nights | Sep 20, Sep 24, Oct 4, Oct 8, Oct 14, Oct 15, Oct 18, Oct 29, Oct 30 |
| 16 | 40 ft | Yes | 9 | 4 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 30 |
| 10 | 32 ft | Yes | 8 | 4 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 8, Oct 13, Oct 18, Oct 22 |
| 35 | 32 ft | Yes | 7 | 4 nights | Oct 5, Oct 6, Oct 7, Oct 8, Oct 12, Oct 13, Oct 14 |
| 38 | 18 ft | Yes | 7 | 3 nights | Sep 24, Sep 30, Oct 1, Oct 4, Oct 18, Oct 19, Oct 20 |
| 08 | 36 ft | Yes | 6 | 4 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 8, Oct 13 |
| 23 | 24 ft | Yes | 6 | 4 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 4, Oct 30 |
| 02 | 40 ft | Yes | 5 | 1 night | Sep 20, Sep 24, Oct 19, Oct 25, Oct 30 |
| 17 | 40 ft | Yes | 5 | 2 nights | Sep 20, Sep 30, Oct 1, Oct 6, Oct 30 |
| 31 | 40 ft | Yes | 5 | 2 nights | Sep 20, Sep 23, Sep 27, Sep 30, Oct 1 |
| 32 | 40 ft | Yes | 5 | 4 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 30 |
| 36 | 40 ft | Yes | 5 | 2 nights | Sep 21, Sep 24, Sep 28, Sep 29, Oct 30 |
| 03 | 40 ft | Yes | 4 | 2 nights | Sep 20, Oct 21, Oct 22, Oct 30 |
| 20 | 34 ft | Yes | 4 | 2 nights | Sep 23, Sep 24, Oct 7, Oct 22 |
| 18 | 40 ft | Yes | 3 | 1 night | Oct 1, Oct 15, Oct 30 |
| 25 | 38 ft | Yes | 3 | 1 night | Sep 24, Sep 27, Oct 4 |
| 33 | 40 ft | Yes | 3 | 1 night | Sep 30, Oct 4, Oct 30 |
| 34 | 40 ft | Yes | 3 | 1 night | Oct 20, Oct 25, Oct 30 |
| 19 | 40 ft | Yes | 2 | 1 night | Oct 7, Oct 14 |
| 26 | 40 ft | Yes | 2 | 1 night | Oct 13, Oct 30 |
| 28 | 38 ft | Yes | 2 | 1 night | Oct 4, Oct 14 |
| 29 | 40 ft | Yes | 2 | 1 night | Sep 24, Oct 1 |
| 05 | 36 ft | Yes | 1 | 1 night | Oct 30 |
| 24 | 26 ft | Yes | 1 | 1 night | Sep 24 |
About Lock A
Overview
The relaxing yet activity-rich Lock A Campground has something to offer everyone from horseshoe pits to volleyball courts and hiking opportunities, plus a plethora of lake activities as well.
Keep in mind, staff will hold a campsite until the check-out time (2:00 pm) on the day following the arrival date. However, if you're arrving late, we highly recommend you call the campground to notify the Park Attendant. If arrival does not occur before check-out time on the day following the arrival date, the reservation will be canceled.
Recreation
The temperate climate here allows for a lengthy recreation season including boating, swimming, canoeing and fishing.
For hikers, the Cumberland River Bicentennial Trail is a rails-to-trails project, which runs 6.5 miles long and crosses Sycamore Creek on a historic abandoned railroad trestle.
Facilities
Both RV and tent sites have 50 amp electric hookups. Additional amenities include hot showers, a dump station, boat launch, playground, picnic shelter and swimming area.
A beach and additional playgrounds are available in the adjacent Cheatham Dam Right Bank Recreation Area.
Natural Features
Lock A is on the north bank of the lake, just upstream from Cheatham Lock and Dam along the Cumberland River in north-central Tennessee.
Nearby Attractions
The Pardue Pond and Dyson Ditch Wildlife Refuges are on the other side of Cheatham lake. Both are excellent places for bird watching and exploring.
44 monitored sitesRVs up to 40 ft44 with hookups42 shadedPets OKMax party 8
Getting there
From Ashland City, Tennessee, take US 12 and go eight miles west to Cheap Hill. Turn left on Cheatham Dam Road traveling west four miles. Turn left into the campground.
1798 Cheatham Dam Road, Ashland City, TN 37015-9805615-792-3715
CampingHikingWater Sports
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-232627 · facility + sites
Photo gallery
Roll CS-232627 · Lock A · Ashland City TN12 frames · facility + sites
FAQ
How do I get a reservation at Lock A?
Reservations for Lock A are made through Recreation.gov. 78.3% of tracked site-nights are not currently open for online reservation; 411 of 1,892 remain open. Campsite Sniper has also detected 176 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 17:19 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 Lock A?
Campsite Sniper detected 105 site-date openings at Lock A in the last 7 days, 175 over 30 days and 176 over the last 90.
Can I get a multi-night stay at Lock A?
60 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 41. Confirm and book on Recreation.gov.
Which sites at Lock A fit a 35-foot RV?
21 of the 44 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 40 ft. 37 of those 44 sites have a recorded maximum length and 7 do not; they are not counted as fitting.
Which month has the most availability at Lock A?
October 2026, with 249 open site-nights in the current snapshot of 1,320.
How far ahead of a stay do openings appear at Lock A?
Half of the openings Campsite Sniper detected appeared at least 10 days before the stay date; the middle 50% landed 4.8-25 days out. Campsite Sniper can monitor future changes for dates you select.
When is the next open date at Lock A?
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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