Pick a site on the map to see its availability calendar.
1,715 openings were recorded here, but they arrived across only 3 days — a burst, not a rhythm, so there is no reliable weekly pattern to show. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
Of the 6,771 tracked site-nights (Sep 18, 2026 – Mar 19, 2027): 3,293 open for online reservation · 182 reserved · 3,296 closed.
Of the open site-nights on mapped sites, 1,909 fall on weekdays and 1,384 on weekends (Fri–Sun).
October holds the most room. 981 of 1,147 site-nights are still open there.
| 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 | 8 | Open |
| FRI Nov 27 | 8 | Open | |
| SAT Nov 28 | 8 | Open | |
| Christmas | THU Dec 24 | 11 | Open |
| FRI Dec 25 | 11 | Open | |
| New Year | THU Dec 31 | 9 | Open |
| FRI Jan 1 | 10 | Open |
Labor Day: no online availability on any tracked night. Thanksgiving: 8 sites are available for the complete three-night stay. Christmas: 11 sites are available for the complete two-night stay. New Year: 9 sites are available for the complete two-night stay.
| Site | Open site-nights |
|---|---|
| 10 | 181 |
| 04 | 178 |
| 07 | 178 |
| 11 | 177 |
| 03 | 175 |
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.
The next bookable night is Sep 18; the first open weekend starts Sep 18. Campsite Sniper can watch later dates for you.
Multi-night stays. 91 2-night, 90 3-night, 75 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 18 at site 14T.
RV length. Longest recorded site here is 85 ft. 27 sites take 25 ft, 26 sites take 35 ft, 26 sites take 40 ft. 10 sites of 37 have no recorded maximum and are not counted.
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 10 | 62 ft | Yes | 181 | 174 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 +169 more |
| 04 | 53 ft | Yes | 178 | 159 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 +166 more |
| 07 | 54 ft | Yes | 178 | 153 nights | Sep 18, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +166 more |
| 11 | 50 ft | Yes | 177 | 160 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +165 more |
| 03 | 53 ft | Yes | 175 | 160 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 4 +163 more |
| 05 | 30 ft | Yes | 174 | 146 nights | Sep 21, Sep 22, Sep 23, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +162 more |
| 12 | 70 ft | Yes | 169 | 163 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Oct 8, Oct 9, Oct 10, Oct 11, Oct 12, Oct 13 +157 more |
| 06 | 70 ft | Yes | 166 | 78 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 +154 more |
| 08 | 55 ft | Yes | 157 | 77 nights | Sep 18, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 +145 more |
| 02 | 66 ft | Yes | 151 | 91 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7 +139 more |
| 01 | 65 ft | Yes | 131 | 88 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 5, Oct 6, Oct 7, Oct 12, Oct 13, Oct 14, Oct 15 +119 more |
| 14T | Not recorded | Yes | 62 | 44 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 +50 more |
| 15T | Not recorded | Yes | 62 | 44 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 +50 more |
| 16T | Not recorded | Yes | 62 | 44 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 +50 more |
| 19 | 60 ft | Yes | 62 | 44 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 +50 more |
| 20 | 68 ft | Yes | 62 | 44 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 +50 more |
| 22T | Not recorded | Yes | 62 | 44 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 +50 more |
| 23 | 70 ft | Yes | 62 | 44 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 +50 more |
| 25 | 63 ft | Yes | 62 | 44 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 +50 more |
| 26 | 74 ft | Yes | 62 | 44 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 +50 more |
| 27 | 73 ft | Yes | 62 | 44 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 +50 more |
| 28 | 73 ft | Yes | 62 | 44 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 +50 more |
| 29T | Not recorded | Yes | 62 | 44 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 +50 more |
| 30 | 73 ft | Yes | 62 | 44 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 +50 more |
| 31 | 80 ft | Yes | 62 | 44 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 +50 more |
| 32T | Not recorded | Yes | 62 | 44 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 +50 more |
| 33T | Not recorded | Yes | 62 | 44 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 +50 more |
| 34 | 80 ft | Yes | 62 | 44 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 +50 more |
| 35 | 45 ft | Yes | 62 | 44 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 +50 more |
| 36 | 85 ft | Yes | 62 | 44 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 +50 more |
| 37T | Not recorded | Yes | 62 | 44 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 +50 more |
| 38T | Not recorded | Yes | 62 | 44 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 +50 more |
| 39T | Not recorded | Yes | 62 | 44 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 +50 more |
| 21 | 70 ft | Yes | 56 | 21 nights | Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +44 more |
| 18 | 70 ft | Yes | 18 | 18 nights | Mar 2, 2027, Mar 3, 2027, Mar 4, 2027, Mar 5, 2027, Mar 6, 2027, Mar 7, 2027, Mar 8, 2027, Mar 9, 2027, Mar 10, 2027, Mar 11, 2027, Mar 12, 2027, Mar 13, 2027 +6 more |
| 24 | 63 ft | Yes | 18 | 18 nights | Mar 2, 2027, Mar 3, 2027, Mar 4, 2027, Mar 5, 2027, Mar 6, 2027, Mar 7, 2027, Mar 8, 2027, Mar 9, 2027, Mar 10, 2027, Mar 11, 2027, Mar 12, 2027, Mar 13, 2027 +6 more |
Union Grove Park is located on the southwestern shore of Stillhouse Hollow Lake in central Texas. The lake offers a wide variety of recreation opportunities, including water sports, hiking, biking, horseback riding, picnicking, large group pavilions, hunting, fishing and simply enjoying the scenery. This facility has RV and tent camping sites with water and electric hookups available. The facility is one of only two reservable campgrounds on the lake. Stillhouse Hollow Lake was created by the U.S. Army Corps of Engineers with the construction of Stillhouse Hollow Dam in 1968. The 6,430-acre lake is located 16 miles upstream of the confluence of the Lampasas and Leon Rivers, which flow into the Little River.
With 58 miles of shoreline, Stillhouse Hollow Lake is an often uncrowded haven for boaters and fishermen. The campground has a four-lane boat ramp, and visitors who do not have motor boats, canoes or kayaks can rent them nearby. Birding is also a favorite pastime, with hawks, Great Blue herons, ducks, geese, many species of songbirds, bobwhite quail, Rio Grande turkey and even an occasional bald eagle, yielding year-round opportunities for bird sightings.
The campground has more than 30 campsites, including RV and tent sites with electric hookups and double sites. The park offers restrooms with flush toilets and hot showers, a fishing dock and a boat ramp.
Aside from two campgrounds and a nearby day-use park, very little of the lakeshore is developed. The edges consist of rocky beaches and sandy bluffs. Although much of the lake area is forested, the campground has rolling hills that are mostly open with little to no shade.
Most campsites have a view of the water, with some right along the shoreline and others within a short walking distance.
The lake has noticeably clear and deep water that is inhabited by largemouth bass, smallmouth bass, channel catfish and many birds. A man-made wetland was constructed on the south shore of the lake to provide an additional 10 acres of wildlife habitat in the lake area.
Within a short drive, the Village of Salado offers golf, art galleries and shopping, among other pastimes.
Chalk Ridge Falls Environmental Learning Center is below the Stillhouse Hollow Lake Dam. The center has about five miles of hiking trails, including a one-mile nature trail along the Lampasas River, a spring-fed creek, a waterfall, bridges and several wildlife viewing points.
Stillhouse Hollow Lake is located near the Fort Hood Army Base, which has several points of interest for the military buff.
From Interstate 35 in Salado, Texas take the Farm-to-Market Road 2484 exit. Travel west on 2484 about five miles to Union Grove Park Road, and turn right into the facility.
View on Recreation.gov ↗ Get directions ↗












Reservations for Union Grove are made through Recreation.gov. 3,293 of 6,771 tracked site-nights are currently open (48.6%). Campsite Sniper has also detected 1,715 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.
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
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.
Campsite Sniper detected 1,015 site-date openings at Union Grove in the last 7 days, 1,715 over 30 days and 1,715 over the last 90.
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 14T. Confirm and book on Recreation.gov.
26 of the 37 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 85 ft. 27 of those 37 sites have a recorded maximum length and 10 do not; they are not counted as fitting.
October 2026, with 981 open site-nights in the current snapshot of 1,147.
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.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We run paced availability checks for Union Grove. One watch covers every matching site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.