Bitterroot National Forest · Montana
Overview 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. Recreation Boating, fishing, swimming and other water sports are popular on Lake Como.
Sites at Three Sisters Group Site (MT) are reserved through Recreation.gov. Sites here can be reserved in advance through the official system, and they are claimed fast — cancellations then trickle back all season, unannounced, at any hour of the day or night.
| Total sites | 1 |
|---|---|
| Site types | Group, Shelter |
| Book through | Recreation.gov |
| Official listing | Recreation.gov |
Because sites are booked months ahead, a steady share of reservations get cancelled as trips fall through. Each cancellation instantly returns that site and those nights to the official calendar — first-come, first-served, no waitlist, no announcement. Refreshing the booking page yourself, every few minutes for weeks, works in theory. In practice, the people who get these sites are the ones who hear about the opening first.
itOpened scans the Recreation.gov calendar for Three Sisters Group Site (MT) around the clock. When a site matching your dates and your vehicle opens, you get a text with a direct link to it. You book it yourself, in your own account, at the normal price. We never book, hold, or resell — your fee pays for monitoring, and openings are first-come, so speed is the whole game.
| Rombo | Cancellation alerts available |
|---|---|
| Indian Trees Campground | Cancellation alerts available |
| Alta Campground | Cancellation alerts available |
| Spring Gulch | Cancellation alerts available |
| Fales Flat Campground | Cancellation alerts available |
| East Fork Cabin | Cancellation alerts available |
| Gird Point | Cancellation alerts available |
| Horse Heaven Cabin | Cancellation alerts available |
| Larry Creek Group Camp | Cancellation alerts available |
| Lost Horse Guard Station | Cancellation alerts available |
| Magruder Rangers House | Cancellation alerts available |
| Mccart Lookout | Cancellation alerts available |
| Medicine Point Lookout | Cancellation alerts available |
| Twogood Cabin | Cancellation alerts available |
| Woods Cabin | Cancellation alerts available |
Page data refreshed 2026-10-29. Site facts come from the official directory listing for Three Sisters Group Site (MT); cancellation statistics come from our own scanning logs.