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-232300
When Sheridan Lake reopens
Sheridan Lake's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
95
Openings · last 90 days
97
Weekday pattern
Detected openings by day of week · 90dWednesday accounted for the largest share of the openings Campsite Sniper detected. 29 of 97 openings detected in the last 90 days occurred on a Wednesday (29.9%), with Friday (19) and Thursday (16) next in line.
Hour-of-day pattern
First detected by hour · local time · last 90 daysThe largest concentrations of detected openings were first detected during the 09:00 and 16:00 local-time hours. Those hours contained 27 of 97 detected openings (27.8%). 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 9 days before the stay date; the middle 50% land 4–17 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 |
|---|---|---|
| 093 | 8 | 8.2% |
| 116 | 7 | 7.2% |
| 065 | 6 | 6.2% |
| 061 | 6 | 6.2% |
| 047 | 6 | 6.2% |
Site 093 had the most detected openings in the last 90 days: 8. One free watch covers every site here.
02 · Availability Outlook · Sep 18 – Sep 30, 2026 · of 89 monitored sites
Of the 1,157 tracked site-nights (Sep 18 – Sep 30, 2026): 741 open for online reservation · 316 reserved · 100 on sites not offered for online reservation (first-come, first-served or administrative).
Where the open windows are
36% of tracked site-nights are not currently open for online reservation. 741 of 1,157 remain open; here is where they are.
Load status
Sep 18 – Sep 30, 2026Not open online36%
Open site-nights741 / 1,157
Reserved (of online inventory)316 / 1,057
Weekday openings503
Weekend openings238
Of the open site-nights on mapped sites, 503 fall on weekdays and 238 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Sep 2026September holds the most room. 741 of 1,157 site-nights are still open there.
Holiday windows
Sites open per night · of 89 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 |
|---|---|
| 001 | 11 |
| 002 | 11 |
| 003 | 11 |
| 004 | 11 |
| 005 | 11 |
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 · Sep 25
The next bookable night is Sep 20; the first open weekend starts Sep 25. Campsite Sniper can watch later dates for you.
Stays and site detail
741 open site-nights across 88 sites at Sheridan Lake, from the same hourly snapshot as everything above.
Multi-night stays. 104 2-night, 97 3-night, 49 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 20 at site 001.
RV length. Longest recorded site here is 77 ft. 88 sites take 25 ft, 85 sites take 35 ft, 75 sites take 40 ft.
Showing 60 of 88 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 001 | 60 ft | None | 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 |
| 002 | 60 ft | None | 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 |
| 003 | 75 ft | None | 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 |
| 004 | 75 ft | None | 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 |
| 005 | 60 ft | None | 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 |
| 006 | 60 ft | None | 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 |
| 008 | 55 ft | None | 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 |
| 010 | 55 ft | None | 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 |
| 011 | 60 ft | None | 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 |
| 012 | 65 ft | None | 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 |
| 014 | 55 ft | None | 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 |
| 015 | 65 ft | None | 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 |
| 016 | 65 ft | None | 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 |
| 017 | 60 ft | None | 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 |
| 018 | 60 ft | None | 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 |
| 019 | 65 ft | None | 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 |
| 020 | 60 ft | None | 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 |
| 022 | 65 ft | None | 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 |
| 023 | 65 ft | None | 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 |
| 024 | 65 ft | None | 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 |
| 025 | 60 ft | None | 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 |
| 026 | 65 ft | None | 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 |
| 027 | 60 ft | None | 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 |
| 029 | 40 ft | None | 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 |
| 030 | 60 ft | None | 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 |
| 031 | 55 ft | None | 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 |
| 032 | 70 ft | None | 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 |
| 033 | 65 ft | None | 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 |
| 034 | 70 ft | None | 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 |
| 035 | 55 ft | None | 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 |
| 036 | 55 ft | None | 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 |
| 037 | 75 ft | None | 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 |
| 038 | 75 ft | None | 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 |
| 039 | 60 ft | None | 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 |
| 043 | 24 ft | None | 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 |
| 071 | 49 ft | None | 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 |
| 074 | 39 ft | None | 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 |
| 080 | 36 ft | None | 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 |
| 081 | 42 ft | None | 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 |
| 082 | 30 ft | None | 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 |
| 091 | 57 ft | None | 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 |
| 092 | 42 ft | None | 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 |
| 094 | 36 ft | None | 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 |
| 095 | 39 ft | None | 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 |
| 007 | 65 ft | None | 10 | 7 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 28, Sep 29, Sep 30 |
| 021 | 55 ft | None | 10 | 10 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 087 | 35 ft | None | 10 | 10 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 089 | 50 ft | None | 10 | 10 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 049 | 27 ft | None | 9 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 070 | 45 ft | None | 9 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 072 | 48 ft | None | 9 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 075 | 50 ft | None | 9 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 076 | 40 ft | None | 9 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 077 | 40 ft | None | 9 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 083 | 39 ft | None | 9 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 009 | 55 ft | None | 8 | 8 nights | Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 061 | 41 ft | None | 8 | 4 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30 |
| 073 | 46 ft | None | 8 | 4 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30 |
| 118 | 60 ft | None | 8 | 4 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30 |
| 124 | 65 ft | None | 8 | 4 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30 |
About Sheridan Lake
Overview
This campground is along the south shore of Sheridan Lake. Within its 5 large loops, there are many sites with direct access to the lake. Access to the south boat ramp and the Flume Trailhead from within the campground and easy access to the South Beach Area, this recreational complex has everything needed for a fun, family camping experience.
Recreation
Black Hills National Forest offers a multitude of recreational opportunites throughout all seasons. Hiking, fishing, horseback riding, mountain biking, and riding off-highway vehicles are popular in summer and early autumn. Winter landscapes are ideal for snowshoeing, skiing and snowmobiling.
The Dakota Point Trailhead for the popular Centennial Trail is located on the northeast side of Sheridan Lake, as is the Calumet Trailhead for the Flume Trail.
At 11 miles (plus a 3-mile loop), the Flume Trail has been designated a National Recreation Trail because of its historical significance to the local people. The Rockerville Flume carried water 20 miles, from Spring Creek west of present day Sheridan Lake, east to the placer diggings near Rockerville. The flume operated until 1885, and the trail follows the actual flume bed for much of its length. Along the way are historic artifacts and parts of the flume itself.
Sheridan Lake is an ideal spot for fishing, swimming and boating. The reservoir supports populations of rainbow, brown trout, northern pike and perch. Fly fishing is popular in Spring Creek below the dam, and ice fishing is popular on the lake in winter.
Facilities
Sheridan Lake Campground has sites able to accommodate tents, trailers, and RVs, including 2 tent-only sites. Each campsite has picnic tables, campfire rings, vault toilets, and drinking water. Electrical hook-ups are not available. Access to the lake and beach is within walking distance, and a boat ramp is available on-site.
Natural Features
Located in western South Dakota and northeastern Wyoming, Black Hills National Forest encompasses nearly 1.25 million acres of rugged rock formations, canyons and gulches, open grassland parks, tumbling streams, deep blue lakes, and unique caves. Derived from the Lakota language, the words "Paha Sapa," meaning "hills that are black," honor the dark, pine-covered hills rising several thousand feet above the surrounding prairie. Wildlife in the area abounds. Bighorn sheep navigate mountainous terrain, while elk, deer and pronghorn gather in forests and prairies. Bald eagles, hawks, osprey, peregrine falcon, and hundreds of other bird species can be found in the forest, especially along streams, lakes and rivers.
Nearby Attractions
Nearby Jewel Cave is the second longest cave in the world at 159.29 miles. It features sparkling calcite crystals and other rare formations, as well as some of the largest concentrations of passageways in the world.
Other possible day trips include Mount Rushmore National Memorial, Custer State Park, Crazy Horse Monument, Devils Tower National Monument and Wind Cave National Park.
89 monitored sitesRVs up to 77 ftNo hookups86 shadedPets OKFire pitsMax party 8
Getting there
From Rapid City, take Highway 16 for 18 miles west to Three Forks. Turn right (north) on Highway 385 and travel 2 miles to Calument Road at the inlet. Turn right and travel 1 mile to the campground.
Accessible SwimmingBirdingBoatingCampingCanoeingDay Use AreaFishingHikingHistoric & Cultural SiteIce FishingKayakingMotor BoatMountain BikingPhotographySwimming SiteWater AccessWater SkiingWildlife Viewing
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-232300 · facility + sites
Photo gallery
Roll CS-232300 · Sheridan Lake12 frames · facility + sites
FAQ
How do I get a reservation at Sheridan Lake?
Reservations for Sheridan Lake are made through Recreation.gov. 741 of 1,157 tracked site-nights are currently open (64%). Campsite Sniper has also detected 97 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 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 Sheridan Lake?
Campsite Sniper detected 42 site-date openings at Sheridan Lake in the last 7 days, 95 over 30 days and 97 over the last 90.
Which day of the week had the most detected openings at Sheridan Lake?
Wednesday accounted for the largest share of the openings Campsite Sniper detected in the last 90 days: 29 of 97 (29.9%). Days reflect when Campsite Sniper first detected each opening, not when the change occurred upstream.
Can I get a multi-night stay at Sheridan Lake?
97 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 001. Confirm and book on Recreation.gov.
Which sites at Sheridan Lake fit a 35-foot RV?
85 of the 89 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 77 ft.
Which month has the most availability at Sheridan Lake?
September 2026, with 741 open site-nights in the current snapshot of 1,157.
How far ahead of a stay do openings appear at Sheridan Lake?
Half of the openings Campsite Sniper detected appeared at least 9 days before the stay date; the middle 50% landed 4-17 days out. Campsite Sniper can monitor future changes for dates you select.
When is the next open date at Sheridan Lake?
As of the Sep 18, 2026 snapshot: the next open date is Sun, Sep 20 and the next open weekend starts Fri, Sep 25. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
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