Mill Creek Trailhead
Open seasonally from May 20 through September 30. First-come, first-served with $5 per night fee. Cash or check payment only. No potable water available.
Red Flag Warning issued August 9 at 8:52PM MDT until August 9 at 9:00PM MDT by NWS Pocatello ID
Winds have backed off below 25 mph and relative humidity has increased. Thus, will allow the Red Flag warning for today to expire at 9 PM MDT this evening. An approaching trough will move through tomorrow and will bring gusty winds. Relative humidity will be continue to be critical tomorrow before monsoon moisture starts moving into the area Wednesday into the rest of the week. Will reissue a Red Flag warning for fire weather zones 475 and 476 for Monday afternoon into the early evening. Will also include fire weather zones 410 and 425 when issue the Red Flag warning for Monday.
Air Quality Alert issued August 7 at 1:30PM MDT by NWS Missoula MT
AQAMSO * WHAT...Air Quality Advisory because of degraded air quality due to wildfire smoke. Air Quality Index is forecast to be Moderate * WHERE...Lemhi County * WHEN...Until 3pm MDT 8/10/2026 * IMPACTS...Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
About
Mill Creek Trailhead & Campground is a rustic 6-site campground located in a wooded setting along Mill Creek in the Lost River Region of Salmon-Challis National Forest. The campground primarily serves as a trailhead for the Mill Creek Trail (#4082), a 7.7-mile non-motorized route leading to Mill Creek Lake and Firebox Meadows. Facilities are basic: one accessible vault toilet, a hitching rail for stock animals, and an unloading ramp for horse trailers. No potable water is available, so campers must bring their own supply. The remote location and equestrian facilities make this an ideal base camp for backcountry horse packing trips. Recreation opportunities include day hiking, backpacking, horseback riding, fishing in Mill Creek and Mill Creek Lake, wildlife viewing, and scenic drives through the surrounding high desert and mountain terrain.
Directions
From Mackay: Take US Highway 93 south 7 miles to Pass Creek Road. Turn left and follow 28 miles to Little Lost/Pahsimeroi Road. Turn left, go 0.2 miles to Sawmill Canyon Road. Turn right, then right again onto Mill Creek Road and follow to the trailhead. From Arco: Take US Highway 20/26 south 8 miles to State Highway 22/33. Turn left, follow 16 miles to Howe, continue straight onto Little Lost/Pahsimeroi Road for 37 miles to Sawmill Canyon Road, then right to Mill Creek Road and to the trailhead.
Nearby Campgrounds
Amenities
| Water | No |
| Fires Allowed | — |
| Toilets | Yes |
| Dump Station | No |
| Wifi | No |
| Pets Allowed | — |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $5 |
Vehicle
| Max RV Length | — |
| Max Trailer Length | — |
| Big Rig Friendly | No |
| Pull Through Sites | — |
Cell Service
| AT&T | None |
| Verizon | None |
| T-Mobile | None |
Useful Links
| USFS Mill Creek Trailhead & Campground |
Community Posts
No posts yet. Be the first to share your experience!