Openings · last 7 days
0
01 · Detected Opening History · the openings record · file CS-233433
When Boulder Campground reopens
Boulder Campground's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
42
Openings · last 90 days
314
Weekday pattern
Detected openings by day of week · 90dNo strong weekday pattern is evident in the openings Campsite Sniper has detected: 314 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 12:00 and 19:00 local-time hours. Those hours contained 99 of 314 detected openings (31.5%). 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 4 days before the stay date; the middle 50% land 2–9 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 |
|---|---|---|
| 003 | 14 | 4.5% |
| 021 | 13 | 4.1% |
| 017 | 12 | 3.8% |
| 014 | 11 | 3.5% |
| 023 | 10 | 3.2% |
Site 003 had the most detected openings in the last 90 days: 14. One free watch covers every site here.
02 · Availability Outlook · Apr 16 – May 3, 2027 · of 82 monitored sites
Of the 1,476 tracked site-nights (Apr 16 – May 3, 2027): 1,202 open for online reservation · 274 reserved.
Where the open windows are
18.6% of tracked site-nights are not currently open for online reservation. 1,202 of 1,476 remain open; here is where they are.
Load status
Apr 16 – May 3, 2027Not open online18.6%
Open site-nights1,202 / 1,476
Reserved (of online inventory)274 / 1,476
Weekday openings601
Weekend openings601
Of the open site-nights on mapped sites, 601 fall on weekdays and 601 on weekends (Fri–Sun).
Open dates by month
Apr 2027 – May 2027April holds the most room. 974 of 1,230 site-nights are still open there.
Holiday windows
Sites open per night · of 82 sites| Window | Night | Sites open | Status |
|---|---|---|---|
| Memorial Day | FRI May 28 | 0 | None open |
| SAT May 29 | 0 | None open | |
| SUN May 30 | 0 | None open | |
| MON May 31 | 0 | None open |
Memorial Day: no online availability on any tracked night.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| 009 | 18 |
| 010 | 18 |
| 011 | 18 |
| 012 | 18 |
| 013 | 18 |
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.
Tracked window
CoverageCampsite Sniper's data for this facility starts Apr 16, 2027. That is about 165 days after the current snapshot was taken, so dates before Apr 16, 2027 are not covered by what Campsite Sniper tracks here — they are not known to be unavailable. The site-nights shown on this page describe Apr 16, 2027 onwards only. Check Recreation.gov for earlier dates.
Stays and site detail
1,202 open site-nights across 80 sites at Boulder Campground, from the same hourly snapshot as everything above.
Multi-night stays. 84 2-night, 79 3-night, 66 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Apr 16, 2027 at site 009.
RV length. Longest recorded site here is 101 ft. 82 sites take 25 ft, 82 sites take 35 ft, 82 sites take 40 ft.
Showing 60 of 80 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 009 | 97 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 010 | 83 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 011 | 66 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 012 | 62 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 013 | 66 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 015 | 85 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 018 | 65 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 019 | 65 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 020 | 50 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 021 | 61 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 022 | 75 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 024 | 67 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 025 | 69 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 026 | 70 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 028 | 50 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 029 | 70 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 035 | 52 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 037 | 43 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 038 | 95 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 039 | 77 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 040 | 65 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 041 | 76 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 042 | 79 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 043 | 65 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 044 | 74 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 045 | 90 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 046 | 60 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 047 | 67 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 048 | 69 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 050 | 65 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 051 | 66 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 052 | 50 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 053 | 55 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 054 | 60 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 055 | 85 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 056 | 68 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 057 | 75 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 058 | 67 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 059 | 52 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 060 | 83 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 061 | 83 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 064 | 80 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 065 | 74 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 066 | 76 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 067 | 61 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 069 | 67 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 071 | 65 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 073 | 60 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 075 | 75 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 077 | 73 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 079 | 92 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 080 | 75 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 081 | 75 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 082 | 83 ft | Yes | 18 | 18 nights | Apr 16, 2027, Apr 17, 2027, Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027 +6 more |
| 014 | 66 ft | Yes | 16 | 16 nights | Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027 +4 more |
| 016 | 65 ft | Yes | 16 | 16 nights | Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027 +4 more |
| 023 | 73 ft | Yes | 16 | 16 nights | Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027 +4 more |
| 027 | 52 ft | Yes | 16 | 16 nights | Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027 +4 more |
| 031 | 45 ft | Yes | 16 | 16 nights | Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027 +4 more |
| 036 | 68 ft | Yes | 16 | 16 nights | Apr 18, 2027, Apr 19, 2027, Apr 20, 2027, Apr 21, 2027, Apr 22, 2027, Apr 23, 2027, Apr 24, 2027, Apr 25, 2027, Apr 26, 2027, Apr 27, 2027, Apr 28, 2027, Apr 29, 2027 +4 more |
About Boulder Campground
Overview
Boulder Campground is situated on the eastern shore of Carlyle Lake, a prime getaway for city-dwellers and families. Located 50 miles east of St. Louis, the area offers the peaceful retreat of a small town combined with the grandeur of Illinois' largest manmade lake.
Recreation
Boulder Campground provides fun both on the water and on shore. Boat ramps and courtesy docks are provided, and the vast lake allows for plenty of water sports. Fishing is a popular pastime, and the lake offers year-round varieties of fish such as bluegill, crappie, channel catfish, flathead catfish, white bass, largemouth bass, freshwater drum, carp and walleye. There is an on-site playground and plenty of open space for children to play, as well as an amphitheater for educational programs. A multi-use biking and walking trail is located a short drive away at the dam.
Facilities
Boulder Campground offers 82 campsites, all of which have a view of the lake with some sites being perched directly on the shoreline. Each campsite is equipped with electric hookups and provides a picnic area with picnic table and fire pit. The campground has modern amenities such as flush toilets, showers and drinking water. It is adjacent to the Boulder Day Use Area which provides a boat ramp and fish cleaning station, as well as a reservable group picnic shelter.
Natural Features
Created in 1967, the 26,000-acre lake is recognized as one of the nation's top ten inland sailing lakes and hosts several annual races and regattas.
Carlyle Lake is home to an array of wildlife that can be seen throughout the year. Its waters and shores are a resting spot for migratory waterfowl and other birds. There are six established Watchable Wildlife Sites with viewing towers open to the public around the lake.
Nearby Attractions
The Carlyle Lake Visitor Center, located in the Dam West Recreation Area, has information available as well as nature exhibits on display, including a 215-gallon aquarium with native fish.
82 monitored sitesRVs up to 101 ft82 with hookups66 shadedPets OKFire pitsMax party 16
Getting there
Address: 25501 Boulder Access RD, Shattuc, IL 62231. From I-57, turn west onto Old U.S. Highway 50. Continue for 19 miles through Salem, Odin and Sandoval. Turn north on Boulder Road and follow seven miles to the campground.
801 Lake Road, Carlyle, IL 62231-9703618-226-3586
BikingBoatingCampingDay Use AreaFishingHikingHuntingInterpretive Programs
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-233433 · facility + sites
Photo gallery
Roll CS-233433 · Boulder Campground · Carlyle IL12 frames · facility + sites
FAQ
How do I get a reservation at Boulder Campground?
Reservations for Boulder Campground are made through Recreation.gov. The current snapshot shows substantial availability: 1,202 of 1,476 tracked site-nights are open (81.4%), though availability can change. Campsite Sniper has also detected 314 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 Nov 2, 2026 16:20 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 Boulder Campground?
Campsite Sniper detected 314 site-date openings here over the last 90 days, none in the last 7. A free alert watches around the clock and pings you the moment one appears.
Can I get a multi-night stay at Boulder Campground?
79 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Apr 16, 2027 at site 009. Confirm and book on Recreation.gov.
Which sites at Boulder Campground fit a 35-foot RV?
82 of the 82 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 101 ft.
Which month has the most availability at Boulder Campground?
April 2027, with 974 open site-nights in the current snapshot of 1,230.
How far ahead of a stay do openings appear at Boulder Campground?
Half of the openings Campsite Sniper detected appeared at least 4 days before the stay date; the middle 50% landed 2-9 days out. Campsite Sniper can monitor future changes for dates you select.
When is the next open date at Boulder Campground?
Campsite Sniper cannot answer that from the current snapshot. The availability data held for Boulder Campground begins Apr 16, 2027 — about 165 days after this snapshot was taken, so any earlier dates are outside what Campsite Sniper is tracking here rather than known to be unavailable. Check Recreation.gov for dates before Apr 16, 2027.
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 Boulder Campground. 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.