Pick a site on the map to see its availability calendar.
Only 17 openings in the last 90 days: not enough recent activity for a reliable pattern. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
Of the 183 tracked site-nights (Nov 2, 2026 – May 3, 2027): 122 open for online reservation · 61 reserved.
Of the open cabin-nights on mapped sites, 81 fall on weekdays and 41 on weekends (Fri–Sun).
April holds the most room. 30 of 30 site-nights are still open there.
| Window | Night | Sites open | Status |
|---|---|---|---|
| Thanksgiving | THU Nov 26 | 0 | None open |
| FRI Nov 27 | 0 | None open | |
| SAT Nov 28 | 0 | None open | |
| Christmas | THU Dec 24 | 0 | None open |
| FRI Dec 25 | 0 | None open | |
| New Year | THU Dec 31 | 0 | None open |
| FRI Jan 1 | 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. Christmas: no online availability on any tracked night. New Year: no online availability on any tracked night. Memorial Day: no online availability on any tracked night.
| Cabin | Open cabin-nights |
|---|---|
| 01 | 122 |
This cabin currently has 122 cabin-nights available.
The next bookable night is Nov 29; the first open weekend starts Dec 4. Campsite Sniper can watch later dates for you.
Multi-night stays. 14 2-night, 14 3-night, 5 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Nov 29 at site 01.
| Cabin | Max RV | Hookups | Open cabin-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 01 | Not recorded | None | 122 | 34 nights | Nov 29, Nov 30, Dec 1, Dec 2, Dec 3, Dec 4, Dec 5, Dec 6, Dec 7, Dec 8, Dec 9, Dec 10 +110 more |
Rillway Cabin is located 14 miles east of Townsend, Montana along scenic Deep Creek in Helena National Forest. Its history can be traced to Dr. A.C. Kelly, a physician who arrived in Townsend in 1915 and served as mayor from 1920-1924. In 1918, Dr. Kelly obtained a term permit from the Forest Service for the cabin site. The cabin was built between 1918 and 1922, then sold to Nellie Hale Averill and her son-in-law, Floyd L. Hollaway. By 1924, the cabin was known as "Rillway," a combination of the Averill and Hollaway family names. Today the cabin is a comfortable, rustic getaway for guests seeking relaxation and recreation in west-central Montana. It offers the easiest access of any cabins on the Helena National Forest, being accessible by vehicle year-round. Several amenities are offered, but guests will need to bring some of their own supplies.
The cabin offers nearby access to a number of trails and roads. A cross-country ski trail is just up the highway and snowmobiling areas are close by as well. Deep Creek flows adjacent to the cabin, providing anglers with a scenic backdrop for fishing. The creek provides habitat for a variety of trout.
The cabin can accommodate up to 6 people and comes furnished with 3 sets of bunkbeds with mattresses. Amenities include a fireplace insert, propane lanterns, a table and chairs, propane cook stove, cleaning supplies, utensils and cookware. An outhouse with vault toilet is near the cabin. An axe and snow shovel are provided. Firewood may be available, but it is not guaranteed. The cabin does not have electricity, running water or indoor plumbing. Guests must bring a sufficient amount of water for drinking, cooking and washing during their stay. Fuel is not provided for the lanterns or propane stove, so guests should bring 1 or 2 small propane cylinders, along with backup lighting. Guests need to provide their own sleeping bags, linens, towels, dish soap, matches, first aid kit, toilet paper and garbage bags. All trash and food should be packed out, and guests are expected to clean the cabin before leaving. No firewood provided from June 1st - August 31.
The cabin is tucked back near a moss-covered canyon wall with Deep Creek splashing through the backyard. The area around the cabin offers a variety of landscapes, from river banks to subalpine terrain. Valley bottoms, dense forests, meadows and barren ridges are mixed with streams, rivers and lakes. Wildlife in the area abounds, including the more common elk, mule and white- tailed deer, squirrel, black bear, moose and a variety of birds. The more elusive badger, wolverine, mountain lion and lynx find habitat here as well.
The cabin is accessible year-round by vehicle. From the 4-way stop light in Townsend, turn east on Hwy 12. Follow the road for 14 miles and watch for the Rillway Cabin sign along the right side of the highway at the 14-mile marker. There is also a sign that welcomes you to the National Forest. Please note, only right turns are allowed when you leave the cabin area. Approximately 1 mile to the east is a pull out; use this to turn around if you must drive west. Please respect the private lands that are near the cabin site.
View on Recreation.gov ↗ Get directions ↗






Reservations for Rillway Cabin are made through Recreation.gov. 122 of 183 tracked site-nights are currently open (66.7%). Campsite Sniper has also detected 17 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 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.
Campsite Sniper detected 17 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.
14 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Nov 29 at site 01. Confirm and book on Recreation.gov.
April 2027, with 30 open site-nights in the current snapshot of 30.
As of the Nov 2, 2026 snapshot: the next open date is Sun, Nov 29 and the next open weekend starts Fri, Dec 4. 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 Rillway Cabin. 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.