Pick a site on the map to see its availability calendar.
107 openings were recorded here in the last 90 days, but none in the last 30 — the pattern below would describe the past, not this season, so we do not chart it. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
Of the 3,472 tracked site-dates (Nov 2, 2026 – May 3, 2027): 157 open for online reservation · 2 reserved · 2,928 on sites not offered for online reservation (first-come, first-served or administrative) · 385 closed. Of the facility's 56 monitored sites, 53 can be reserved online and 3 are first-come, first-served.
Of the open site-nights on mapped sites, 52 fall on weekdays and 102 on weekends (Fri–Sun). The split covers the 154 open site-nights on mapped sites; 157 site-dates are open across all monitored inventory.
November shows no online availability. 0 of 1,624 tracked site-dates are open there — 1,239 on sites not offered online, 385 closed.
| Window | Night | Sites open | Status |
|---|---|---|---|
| Thanksgiving | THU Nov 26 | 0 | None open |
| FRI Nov 27 | 0 | None open | |
| SAT Nov 28 | 0 | None open | |
| 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 |
Thanksgiving: no online availability on any tracked night. Memorial Day: no online availability on any tracked night.
| Window | Date | Units open | Status |
|---|---|---|---|
| Thanksgiving | THU Nov 26 | 0 | None open |
| FRI Nov 27 | 0 | None open | |
| SAT Nov 28 | 0 | None open | |
| 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 |
Thanksgiving: no online availability on any tracked date. Memorial Day: no online availability on any tracked date.
| Site | Open site-nights |
|---|---|
| 01 | 3 |
| 02 | 3 |
| 03 | 3 |
| 04 | 3 |
| 05 | 3 |
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.
| Unit | Open reservation dates |
|---|---|
| Group Use Shelter | 3 |
This day-use unit currently has 3 reservation dates available.
The next bookable night is May 1, 2027; the first open weekend starts May 1, 2027. Campsite Sniper can watch later dates for you.
52 overnight sites and 4 day-use units are represented in the current inventory. Day-use units are excluded from every night-based figure on this page — site-nights, longest runs, multi-night stays, holiday stays and RV fit; their reservation dates are listed separately below.
Multi-night stays. 51 2-night, 51 3-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest May 1, 2027 at site 01.
RV length. Longest recorded site here is 33 ft. 10 sites take 25 ft. 42 sites of 52 have no recorded maximum and are not counted.
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 01 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 02 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 03 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 04 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 05 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 06 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 08 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 09 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 10 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 11 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 12 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 13 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 14 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 15 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 16 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 17 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 18 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 19 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 20 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 21 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 22 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 23 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 24 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 25 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 26 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 27 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 28 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 29 | 33 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 30 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 31 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 32 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 33 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 34 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 35 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 36 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 37 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 38 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 39 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 40 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 41 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 42 | 30 ft | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 44 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 45 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 46 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 47 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 48 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 49 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 50 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 51 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 52 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 53 | Not recorded | None | 3 | 3 nights | May 1, 2027, May 2, 2027, May 3, 2027 |
| 07 | Not recorded | None | 1 | 1 night | May 3, 2027 |
| Unit | Open reservation dates | Consecutive dates | Dates |
|---|---|---|---|
| Group Use Shelter | 3 | 3 dates | May 1, 2027, May 2, 2027, May 3, 2027 |
Holter Lake Campground is situated on the picturesque Holter Lake in west central Montana. The site is located approximately 45 miles north of Helena, Montana, along the Missouri River. The area offers stunning views of the Sleeping Giant Wilderness Study Area. Gates of the Mountains Historic Site is in close proximity of the campground, which is accessible via a watercraft. The area is overflowing with outdoor adventure opportunities. Whether you're into fishing, hunting, wildlife viewing, hiking, boating, water skiing, or all of the above, all of these activities are in close proximity to Holter Lake Campground. There is surely an activity for everyone!
Holter Lake Campground offers excellent recreational opportunities. Activities in the area include camping, boating (motorized and non-motorized), fishing, water skiing, hiking, scenic/wildlife photography, wildlife viewing, and bird watching. There are trails within the general vicinity, as well as multiple fishing access sites and hunting access points. The recreation opportunities in the area are truly boundless.
Holter Lake Campground offers several amenities that will make your stay enjoyable and comfortable. Holter Lake Campground is a 52-site campground that has spacious and level gravel parking pads that accommodate RVs, camper trailers, and tents. There are 9 tent-only sites. Most of the campsites can accomodate up to 2 RVs or tents per site. Of the 52 sites, all are reservation only. First come first serve sites may be avaible on a daily basis after 2pm but are not guaranteed.
Holter lake Campground features a large concrete boat launch with a courtesy dock, as well as day-use and overnight dock slips for those camping in the campground. The docks are first-come, first-served, with no assigned slips. There is potable water provided throughout the campground and day-use areas, as well as garbage dumpsters. There are no hook-ups available. The A loop and tent area sites contain a fire ring with a grill grate in addition to a picnic table. There are also picnic tables and benches along the lake to take in the views.
Every campsite has a view of the lake and mountains. The campground and day-use area has poplar and green ash trees throughout the campground, which provide shade during the height of the summer. The site is situated in a shrub-steppe landscape, mostly comprised of sage brush and bunch grasses. The campground is surrounded by sparsely wooded hills.
Holter Lake Campground is located in a prime location to get out and recreate outdoors. There is access to public lands, where multiple recreation opportunities and experiences are available. The campground is adjacent to the Missouri River, which was also the historical travel corridor for The Lewis and Clark Trail. Holter Lake Campground is situated between Helena and Great Falls.
In Helena, there are great restaurants, museums, the capitol building, old mining settlements, Last Chance Gulch, Reeder's Alley, and a vibrant downtown area. In or near Great Falls, there is the First People's Buffalo Jump and Interpretive Center, Charlie Russell museum, Lewis and Clark Interpretive Center, Giant Springs Fish Hatchery and State Park, and Tower Rock State Park. The Continental Divide Trail is nearby.
From Great Falls, Montana take Interstate-15 South towards Helena. Take exit 234 to Craig. Turn left heading to Craig and cross the Missouri River. Come to a "T" and then take a right on Recreation Road. Travel approximately 5 miles. Before crossing the Missouri River/steel bridge, turn left onto Beartooth Road. Continue 2.3 miles to Holter Lake Campground. The Campground will be on your right. From Helena, Montana take Interstate-15 north towards Great Falls. Take exit 226 to Wolf Creek. Turn right towards Recreation Road and cross the railroad tracks. Turn left onto Recreation Road. After crossing the Missouri River/steel bridge, turn right onto Beartooth Road. Continue 2.3 miles to Holter Lake Campground. The Campground will be on your right.
View on Recreation.gov ↗ Get directions ↗












Reservations for Holter Lake Campground are made through Recreation.gov. 95.5% of tracked site-dates are not currently open for online reservation; 157 of 3,472 remain open. Campsite Sniper has also detected 107 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.
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 Nov 2, 2026 18:20 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.
Campsite Sniper detected 107 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.
51 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts May 1, 2027 at site 01. Confirm and book on Recreation.gov.
No RV-analyzable site here has a recorded maximum of 35 ft or more; the longest recorded is 33 ft. 10 of those 52 sites have a recorded maximum length and 42 do not; they are not counted as fitting.
May 2027, with 157 open site-dates in the current snapshot of 168.
As of the Nov 2, 2026 snapshot: the next open date is Sat, May 1, 2027 and the next open weekend starts Sat, May 1, 2027. 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 Holter Lake Campground. One watch covers every matching online-reservable site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.
Alerts monitor online-reservable inventory only; first-come, first-served sites are not included.