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Only 4 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 (Sep 18, 2026 – Mar 19, 2027): 59 open for online reservation · 34 reserved · 12 closed · 78 not yet released.
Of the open cabin-nights on mapped sites, 35 fall on weekdays and 24 on weekends (Fri–Sun).
September shows no online availability. 0 of 13 tracked site-nights are open there — 10 reserved, 3 closed.
| 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 | 1 | Open |
| FRI Nov 27 | 1 | Open | |
| SAT Nov 28 | 1 | Open | |
| Christmas | THU Dec 24 | 1 | Open |
| FRI Dec 25 | 1 | Open | |
| New Year | THU Dec 31 | 1 | Open |
| FRI Jan 1 | 0 | None open |
Labor Day: no online availability on any tracked night. Thanksgiving: 1 cabin is available for the complete three-night stay. Christmas: 1 cabin is available for the complete two-night stay. New Year: no cabin is currently available for the complete two-night stay. Friday has no online availability; individual Thursday night remains open.
| Cabin | Open cabin-nights |
|---|---|
| Tarpons Roost Cabin | 59 |
This cabin currently has 59 cabin-nights available.
The next bookable night is Oct 2; the first open weekend starts Oct 2. Campsite Sniper can watch later dates for you.
Multi-night stays. 3 2-night, 3 3-night, 2 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Oct 2 at site Tarpons Roost Cabin.
| Cabin | Max RV | Hookups | Open cabin-nights | Longest run | Dates |
|---|---|---|---|---|---|
| Tarpons Roost Cabin | Not recorded | None | 59 | 46 nights | Oct 2, Oct 3, Oct 4, Oct 5, Oct 15, Oct 16, Oct 17, Oct 18, Oct 19, Oct 20, Oct 21, Oct 22 +47 more |
Tarpons Roost Cabin provides a fantastic modern place to stay while recreating in the scenic Beaverhead Mountains of central Idaho. The cabin is situated along the Continental Divide National Scenic Trail and the Lewis and Clark National Historic Trail near Lemhi Pass.
During the summer months the cabin can be accessed by passenger vehicle from the access road south of Lemhi Pass. The Continental Divide Trail is directly across the meadow in-front of the cabin, making it easy to go for a hike and explore the area. The area surrounding the cabin also offers numerous opportunities to explore the past at the interpretive sites within the Lewis and Clark National Historic Landmark
During the winter months the cabin can be accessed by snowmobile, cross-country skiing, or other winter travel methods. There is a groomed snowmobile trail that leads to the cabin via the Warm Springs Road. The winter wonderland surrounding the cabin during the winter provides endless opportunities for solitude or winter recreation.
The area hosts a vast array of seasonal recreation opportunities including hiking, backpacking, mountain biking, Off-Highway-Vehicle riding, big game hunting, snowmobiling, and cross country skiing to name a few. The Continental Divide Trail passes close to the cabin and long-distance thru hikers can be seen daily from July to September. The Lemhi Pass National Historic Landmark provides numerous historic and cultural interpretive opportunities. The surrounding area in Idaho and Montana is well known for its abradant wildlife and big game hunting opportunities.
The cabin built in 2024 has two twin over queen bunk beds and can sleep up to six people. A wood stove is available for heat, and firewood and an axe are provided from October 1-June 15. You will need to provide your own firewood from June 16-September 30. An outdoor vault toilet is provided near the cabin.
A cabin contains a basic-equipped kitchen, a large table with benches and stools, and a variety of cooking and eating utensils. The kitchen has a propane cooking stove and a small sink for wastewater. Water is not available at the cabin. A propane lantern should also be available, but fuel is not supplied for the lantern or cook stove.
Guests will need to bring their own water for drinking, cooking and cleaning, as well as bedding, towels, toilet paper, soap, matches, food and other necessities. Guests should bring their own bedding, food, toilet paper, towels, flashlights, garbage bags and 16-ounce propane canisters for the stove and lantern. All garbage and food must be packed out and guests should clean the cabin prior to leaving.
The cabin has no electricity or running water. It is recommended that guests bring their own water supply for drinking, cooking and washing. Water is also available at the Sacajawea Memorial Picnic Area or from a nearby spring, but it must be treated or boiled prior to use.
The cabin is located along the Continental Divide separating the East-West draining watersheds of the United States. It is found in the Beaverhead Mountains of central Idaho at the edge of a grassy meadow in a forest dominated by lodgepole pine trees at an elevation of 7,500 feet. The area surrounding the cabin is abundant with wildlife, history, and recreation opportunities.
Lemhi Pass National Historic Landmark along the Lewis and Clark National Historic Trail. This is the point where the party first crossed the continental divide on August 12, 1805.
Continental Divide National Scenic Trail that spans over 3,100 miles from Mecio to Canada. This long-distance trail sees thousands of visitors yearly from all over the world to attempt a complete thru hike or enjoy smaller sections.
From Salmon travel south-east on Highway 28 for about 20 miles before turning east at Tendoy. Follow the Agency Creek Road east for about 12 miles to Lemhi Pass. Take the first right and follow road south for about two miles before reaching the cabin. During the wintertime the cabin can be accessed from the Warm Springs Creek groomed snowmobile route or from the ungroomed Agency Creek Road. Maps of the area and snowmobile routes are available at the Public Lands Center in Salmon.
View on Recreation.gov ↗ Get directions ↗







Reservations for Tarpons Roost Cabin are made through Recreation.gov. 59 of 183 tracked site-nights are currently open (32.2%). Campsite Sniper has also detected 4 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 16:19 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 2 site-date openings at Tarpons Roost Cabin in the last 7 days, 4 over 30 days and 4 over the last 90.
3 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Oct 2 at site Tarpons Roost Cabin. Confirm and book on Recreation.gov.
December 2026, with 31 open site-nights in the current snapshot of 31.
As of the Sep 18, 2026 snapshot: the next open date is Fri, Oct 2 and the next open weekend starts Fri, Oct 2. 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 Tarpons Roost 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.