Montana State Parks · Montana
Missouri Headwaters State Park
Montana State Parks · Montana, United States
- Sites
- 17
- Drinking water
- Yes
- Restrooms
- Yes
- Showers
- No
- Dump station
- No
- Laundry
- No
- Pets
- Yes
- Elevation
- 4,042 ft
- Dark sky
- Bortle class 1
- Cell coverage
- T-Mobile good · AT&T good · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Address
- 1585 Trident Road, Three Forks, MT 59752
- Phone
- 406-285-3610
About
Missouri Headwaters State Park, at the confluence forming the Missouri River, is a Montana FWP state park with 17 campsites.
Fees
Montana FWP's statewide camping rate: $4-$34 per night, depending on season and available amenities. Plus Montana's day-use entrance fee (in addition to the nightly camping rate): Montana residents who pay the $9 state parks fee with vehicle registration owe no daily entrance fee; nonresidents pay $8/vehicle or $4/walk-in per day (or $50/year for a Nonresident Entrance Pass, $35 for a 7-day pass). A 50% camping-fee discount applies statewide to Montana-resident seniors (62+), veterans and people with disabilities.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 33° | 18° | -24° | 48° | 11 of 11 |
| February | 31° | 15° | -24° | 53° | 11 of 11 |
| March | 45° | 25° | 7° | 69° | 11 of 11 |
| April | 52° | 31° | 7° | 71° | 10 of 11 |
| May | 64° | 41° | 27° | 79° | 2 of 11 |
| June | 73° | 51° | 35° | 96° | 0 of 11 |
| July | 87° | 59° | 47° | 101° | 0 of 11 |
| August | 86° | 58° | 49° | 96° | 0 of 11 |
| September | 74° | 50° | 37° | 90° | 0 of 11 |
| October | 60° | 36° | 24° | 79° | 7 of 10 |
| November | 46° | 28° | -11° | 64° | 9 of 10 |
| December | 34° | 19° | 1° | 53° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Toston Dam · Bureau of Land Management · 15 mi
- Lower Toston · Bureau of Land Management · 15 mi
- Lewis & Clark Caverns State Park · Montana State Parks · 18 mi · 40 sites
- Red Mountain (MT) · Bureau of Land Management · 22 mi · 18 sites
- Trapper Springs (MT) · Bureau of Land Management · 22 mi · 16 sites
All public campgrounds in Montana · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.