U.S. Forest Service · Boise National Forest · ID

Big Trinity Cabin

ReservableOut of season, no booking; January 15 opens July 15.
Book on recreation.govWe make nothing when you book
Right now
Nobody has saidNo season, no closure, no bookings to read
Sites
2All of them booked ahead
7,860 ftElevation
360 ftWater · an unnamed stream
25.9 miE of Robie Creek, ID
0%Tree cover
Bortle 2Night sky · 374th darkest of 523 in ID

The place

the agency’s own description · what’s there · 10 notices

In the agency’s own words

Big Trinity Cabin offers a quiet retreat in a beautiful high alpine landscape. The cabin is situated within a popular summer recreation area with many activities to enjoy. The cabin has a limited season due to late snow melt, but is accessible by vehicles with reasonable ground clearance. Many creature comforts are provided; however, guests may want to bring some supplies and gear to make their experience more comfortable and enjoyable. Keep reading

Recreation

The 4- mile Rainbow Basin Trail system for pedestrain travel only, offers access to several lakes, hikers can access the trail System from the trailhead located within Big Trinity Lake campground. Other trails within the area Roaring River trail 045, and Lava Mountain trail 125, these are motorized motorcycle trails. Click here for an Idaho OHV Safety Message. Anglers can fish in any of the nearby lakes for rainbow and cutthroat trout. The lakes are also ideal for exploring by canoe or kayak.

Facilities

The cabin sleeps six and is equipped with one double bed, a sofa bed, side tables, a drop-down kitchen table, cleaning supplies, dishes and tableware, chairs and a dining table, cookware and a fire extinguisher. A wood stove is available for heating and cooking. A picnic table and campfire ring with grill are provided outside. Drinking water is available from a nearby hand pump. The cabin is stocked with seasoned wood, a splitting maul, axe and hatchet. A vault restroom is located outside. No electricity or propane is available. Guests must bring garbage bags to pack out their trash. Bedding, lighting and emergency supplies are not provided. Guests are responsible for cleaning the cabin before leaving.

Natural Features

The cabin is located in a dense lodgepole pine forest close to the East Fork Roaring River at an elevation of 7,900 feet. It's nestled among four subalpine lakes: Big Roaring River Lake, Little Roaring River Lake, Big Trinity Lake and Little Trinity Lake. The peaks of the Boise Mountains surround the cabins, and Trinity Mountain, the tallest in the range at 9,451 feet, is just to the south. Snow can make this area inaccessible until early July, but soon afterward, the land is blanketed by colorful summer wildflowers. This area is a haven for elk and deer, but wildlife watchers may also spot an occasional black bear.

Nearby Attractions

The summit of Trinity Mountain is the highest drivable point in Idaho, although the road may be blocked by snow until early July. A short, steep hike takes visitors to the lookout tower for panoramic views of several subalpine lakes and other mountains in the Boise Range.

What the agency tells you

Rule

Instructions for the combination lock on the door are located at the gate and cabin entrance; the combination is included in the reservation confirmation letter

Rule

No water is available in the cabin; it is only available from the outside hand pump

Rule

No garbage service; trash must be packed out

Everything else this campground posts · 7
Rule

Phone service is one hour away

Rule

Candles are not permitted in the cabin

Rule

Camping is not allowed at this site; please do not use tents at the cabin

Rule

Livestock, such as saddle, pack or draft animals, is not allowed at this site

Rule

Camping is available on a first come, first served basis at three nearby campgrounds: Big Trinity, Big Roaring and Little Roaring

Rule

Click here for more information about Boise National Forest

Rule

Don't Move Firewood: Help prevent the spread of tree-killing pests in our national forests by obtaining firewood near your destination and burning it on-site. For more information visit dontmovefirewood.org.

Read them on the agency’s own page →

Tents and rigs

Sites
2 · 2 cabin
Hookups
None
Accessible sites
None listed
Pets
Allowed
Campfires
Allowed, barring fire bans
Shade
Every site
Source: Recreation.gov campsite records · Aug 23, 2026

Facilities

Toilets
Vault Toilets
“…a splitting maul, axe and hatchet. A vault restroom is located outside. No electricity or propane is…”
Drinking water
Yes
“…ring with grill are provided outside. Drinking water is available from a nearby hand pump. The cabin is…”

Around the campground

On the water
Lake, River
Biking
Canoeing
Fishing
Hiking
Non-Motorized Boating
Wildlife viewing
Source: Recreation.gov activity records · Aug 23, 2026

No reading yet, book on recreation.gov

Every site here is reservable, and the record lists none held back for anyone who drives up.

No availability snapshot inside the last 36 hours, so this page draws nothing rather than ageing a reading into fiction.

Booking windowOut of seasonOut of season, no booking. On January 15, 2027 at 10 AM ET, availability opens through July 15, 2027.recreation.govAdd to calendar (.ics)
Sites, a night, from$60From the rate schedule matched to 2 of its 2 sites. U.S. Forest Service publishes no campground-level rate we can read.derived by CAMPANAC
If plans change$10 to cancel$10 to change a reservationrecreation.gov’s schedule
Runs itU.S. Forest ServiceBooked through recreation.govthe agency’s record
Watch for a cancellation

Full? Watch it.

One email when a night opens, plus More Than Just Parks dispatches. Unsubscribe any time.

We read recreation.gov once an hour, at 40 minutes past, and write the first time a site in your window is free for the nights you asked for.

Scanners that check every few minutes exist, and most of them charge. This one is free, it reads the same calendar, and it won’t always be first.

Free forever, no booking kickbacks.
Tell me when the season opens

Watch for the season to open

One email when the season goes on sale, plus More Than Just Parks dispatches. Unsubscribe any time.

We check once an hour, at 40 minutes past, and write the first time the agency has that season on sale.

Scanners that check every few minutes exist, and most of them charge. This one is free, it reads the same calendar, and it won’t always be first.

We’ll write once, when the season that starts Thu, Jul 15 2027 is open for booking.

Free forever, no booking kickbacks.
Book on recreation.gov

We make nothing when you book. The link goes straight to the government.

Every line of the receipt · 12

What you actually pay

The sign priceU.S. Forest Service
Sites, a night, from$60
Derived by CAMPANAC from the rate schedule matched to 2 of its 2 sites. U.S. Forest Service publishes no campground-level rate for this campground that we can read, only per-site rate templates its own record matches to each site’s own type.
Group areas, a night$60–$80
These are next season’s rates, Jul 15, 2027 to Sep 30, 2027. The campground is between seasons now.
The booking feerecreation.gov
Reservation fee, booked online$8
One fee per reservation, however many nights you book, and it’s non-refundable. $9 if you book by phone, $3 in person.
Pass discounts only apply to the recreation (or use) fee for the facility. Other charges such as electricity or water hookups, reservation or other fees are not eligible for a discount.
What a stay costs
The agency publishes no nightly rate for this campground, so there’s nothing to add the $8 booking fee to. We won’t total a receipt with a number missing from it.
If your plans changerecreation.gov
Change fee, moving to dates outside your booking$10
Cancellation fee$10
Cancelling the day before, or the day of$10 + your first night
No-show$20 + your first night

Who keeps the booking fee

The agency’s own policy text says the reservation fee and the cancellation processing fee are “retained by the reservation service contractor”, and that a campground concessionaire will decline to refund them because “they did not receive these fees”. Recreation.gov is run under contract by Booz Allen Hamilton. What share of your booking fee the contractor keeps isn’t published in any federal dataset we can read, so we print no number for it. Our reporting on the contract →

How we know this receipt · 5

rules read Sep 9, 2026 · rates Sep 10, 2026 · How we know all this

Seen something wrong here? Tell us.

The sites

2 sites · the site map

All 2 sites

2 of 2 sites located
Cabin or shelter2
Aerial · Esri World Imagery
SleepsUp to

Toilet distances are OpenStreetMap’s, measured for 2 of the 2 sites listed. A site with no reading is unknown, never far.

The price is derived by CAMPANAC, not published per site: the per-night rate this campground publishes for each site’s own site type. 2 of the 2 sites listed carry one, and a site whose type has no published rate sits out of the price rather than being called free.

Getting there

the map and the coordinate · the agency’s directions · the phone number
Coordinate43.62889, -115.43694
The phone208-587-7961
The agency’s pageOfficial page ↗

Where it is

Getting there

Travel east from Boise, Idaho on I-84 to Mountain Home. At I-84/Highway 20 junction, take Highway 20 east for 35 miles to Pine/Featherville turnoff. Travel north on Forest Highway 61 for 29 miles to Forest Road 172. Travel 15 miles northwest to Forest Road 129. Travel 3 miles to the Guard Station junction. The roadway is paved up to the junction of Forest Road 172. Forest Road 172 is native material (dirt) and trailer traffic is not recommended. There are signs noting each of the junctions.

The weather

the next four days

Next four days, and the thirty-year normal

Forecast

This Afternoon53°Sunny
Tonight33°Partly Cloudy
Saturday54°Mostly Sunny
Saturday Night34°Partly Cloudy

NWS forecast for Idaho City, ID

The land, and who answers for it

what threatens it · who answers for it

What threatens this place

Roadless
Rainbow31,480 acres · 4 mi · inventoried roadless area
Roadless
Whiskey Jack6,566 acres · 6 mi · inventoried roadless area
Roadless
Sheep Creek70,371 acres · 7 mi · inventoried roadless area

You’re camping on ground somebody wants. We track the threats and the comment deadlines.

Source: MTJP Threatened Lands map · Oct 5, 2026

Who answers for this land

Mike Simpson, official portrait

Big Trinity Cabin is in Idaho’s 2nd congressional district. Its representative, Mike Simpson (R), votes on the laws that decide what happens to this land. Public-lands grade so far: F. See every public-lands vote →

Seen something wrong here? Tell us.

How we know

every fact on this page, and where it came from
Right now: U.S. Forest Service publishes no season and no closure for this campground, and it takes no bookings we can read. That’s a gap in the record and not a locked gate: the number below is the only way to be sure.
Cell signal: the Forest Service’s own campground description, read as text by CAMPANAC. None of this is a measurement. It’s what the land manager published about the place, and phones, carriers and weather all disagree with each other; treat it as a warning, not a promise.
Nearest place of any size: Idaho City, ID, 23.3 mi SE. Straight line.