U.S. Forest Service · Bitterroot National Forest · MT

Three Sisters Group Site (MT)

3Heads up3 fires, nearest 8 mi
Wildfire
North Fork Lost Horse fire · 8.4 mi away · 118 acres · 100% contained · updated Oct 15, 2026
Wildfire
Nature Grove fire · 16 mi away · 1,422 acres · 100% contained · updated Oct 15, 2026
Wildfire
Black Bear fire · 18 mi away · 2,126 acres · 100% contained · updated Oct 15, 2026
ReservableOut of season; bookable April 16 through April 16.
Book on recreation.govWe make nothing when you book
Right now
OpenInside the published season, our reading
Sites
1All of them booked ahead
Season
May 1Opens May 1. No closing date published.
4,220 ftElevation
171 ftWater · Rock Creek
11.7 miSW of Hamilton, MT
32%Tree cover
Bortle 2Night sky · 365th darkest of 501 in MT
Opens May 1. No closing date published.Today

The place

the agency’s own description · what’s there · 8 notices

In the agency’s own words

Three Sisters Group Site is located within the Lake Como Recreation Area on the Darby Ranger District of the Bitterroot National Forest. The group site, which is located across the road from the Rock Creek Horse Camp, is situated among the pine trees and is adjacent to the outlet of Lake Como. Keep reading

Recreation

Boating, fishing, swimming and other water sports are popular on Lake Como. Anglers might see rainbow and cutthroat trout, as well as kokanee salmon, among other alpine species. A boat ramp and parking area are available at the south side of the lake. A large, sandy beach is available to visitors at the North side of the lake. To the West of the site on the North side, a short walk will take visitors to a trailhead that begins a 7-mile loop trail around Lake Como. The Lake Como National Recreation Loop Trail is suitable for hiking, mountain biking and accessing the lake for swimming or picnics. The first quarter-mile of the trail is wheelchair accessible and the trail also crosses Rock Creek at one point. Approximately 3.5 miles from the site, at the West end of the lake, is a magnificent waterfall that cascades over fern-covered rock cliffs. A trail continues from the waterfall, or heads west up Rock Creek, into the Selway-Bitterroot Wilderness area.

Facilities

Three Sisters Group Site has a 20’x30’ pavilion, equipped with 6 picnic tables, 1 BBQ grill, and 2 serving tables. The site also has benches around a fire ring, two outhouses, and accommodations for 25 vehicles. The maximum number of people allowed at the site is 75. Water, electricity, and firewood are not available at the site .

Natural Features

The group site is located near the East end of 913-acre Lake Como in the central Bitterroot Mountains of western Montana. It is situated at an elevation of 4,245 feet and is primarily used for meetings, reunions, weddings and family gatherings, as it can accommodate a larger group of people. A variety of wildlife and birds can be seen around the area and its surroundings. Osprey, bald eagles, deer, moose, elk and bears make their home in the area (learn about outdoor safety ). Nearby Attractions

What the agency tells you

Rule

A total of eight Lake Como day use admittance passes will be emailed to the customer prior to the reservation period and are valid for all day use sites within the Lake Como Recreation Area Complex. The day use fee season begins Memorial Day weekend and extends through Labor Day weekend. If additional day use passes are required they may be purchased with cash or check in the amount of $5.00 at any of the self service pay stations at the lake to include the fee station at the group site itself.

Rule

Check in time is 2:00 p.m., check-out time is 12:00 p.m.

Rule

Pets must be physically restrained on a leash. Please pick up all pet waste and dispose of with your trash.

Everything else this campground posts · 5
Rule

This is wildlife habitat. When not in use, all food containers, coolers, and equipment used to prepare food should be stored inside a vehicle.

Rule

Vehicles must park in designated spaces only within the area and not on the vegetation. Roadways must remain open. Vehicles cannot park on the highway.

Rule

Stock is not allowed in the site.

Rule

Quiet hours are from 10:00 p.m. to 6:00 a.m.

Rule

Site can be reserved for a maximum of 4 nights.

Read them on the agency’s own page →

Tents and rigs

Sites
1 · 1 group, 1 cabin
Hookups
None
Accessible sites
1
Pets
Allowed
Campfires
Allowed, barring fire bans
Shade
Every site
Source: Recreation.gov campsite records · Aug 23, 2026

Facilities

Boat ramp
Yes
Firewood
Mentioned
Source: Stated in the agency description · Aug 23, 2026

Around the campground

On the water
Waterfall, Lake, Creek, Beach
Biking
Boating
Canoeing
Hiking
Kayaking
Mountain biking
Non-Motorized Boating
Picnicking
Sailing
Swimming
Water access
Water sports
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 windowFrom April 16Out of season now. Bookable for April 16, 2027 through April 16, 2027. Today at 10 AM ET, availability opens through April 17, 2027.recreation.gov
Max stay4 nightsthe facility record
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 Fri, Apr 16 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 · 13

What you actually pay

The sign priceU.S. Forest Service
The U.S. Forest Service publishes no per-night rate for this campground that we can read, so there’s no sign price to print. That’s a gap in the record, not a free campground.
Group area, a night$75
Rates for the season the campground is in now, Apr 17, 2026 to Oct 11, 2026.
Self service fee station on site.
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 this campground addsits own record
Extra vehicleSee the note

“$75.00 per reserved day/night and $5.00 additional vehicle charge applies when more than 8 vehicles.” · the U.S. Forest Service’s own fee record

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

1 sites

All 1 sites

Sleeps
Three Sisters Group SiteThree Sisters Group Sitegroup shelter nonelectricyes

Getting there

the map and the coordinate · the agency’s directions · the phone number
Coordinate46.06433, -114.23212
The phone406-821-3913
The agency’s pageOfficial page ↗

Where it is

Getting there

From Darby, Montana, continue north on Highway 93 for 4 miles. Turn west onto County Road 82/Lake Como Road. Follow signs to the Lake Como Recreation Area and continue West past Forest Road 1111 towards the Boat launch, to the site which is on the North side or right hand side of the road. Maps of the area can be purchased by calling the Darby Ranger District. 406-821-3913

The weather

the next four days · the thirty-year normal

Next four days, and the thirty-year normal

Forecast

Overnight42°Partly Cloudy
Saturday68°Mostly Sunny
Saturday Night40°Partly Cloudy
Sunday61°Mostly Sunny

NWS forecast for Darby, MT

Typical weather

Typical May night 39°F, day 64°F.

Coldest night of the open season: typical May night 39°F. Bring the bag rated for it.

90°32°10°

Daily high and lowDays with 0.10 in or moreOutside the published season

A normal is the 1991-2020 average for the month, not a forecast: about half of all Julys are colder than the July line. The seven-day forecast above answers the other question.

Measured at: DARBY, MT (USC00242221), 4 miles away and 340 ft lower

The land, and who answers for it

what threatens it · who answers for it

What threatens this place

developing
Roadless
Selway-Bitterroot114,953 acres · 6 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 3, 2026

Who answers for this land

Ryan Zinke, official portrait

Three Sisters Group Site (MT) is in Montana’s 1st congressional district. Its representative, Ryan Zinke (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: Today falls inside the season the agency publishes, and it has posted nothing else. That reading is ours.
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: Darby, MT, 3.1 mi NW. Straight line.