Montana State Parks · Montana
Black Sandy State Park
Montana State Parks · Montana, United States
- Sites
- 35
- Hookups
- 29 electric, 6 no hookups
- Max RV length
- 35 ft
- Drinking water
- Yes
- Restrooms
- Yes
- Dump station
- Yes
- Pets
- Yes
- Elevation
- 3,661 ft
- Dark sky
- Bortle class 2
- Cell coverage
- AT&T weak · T-Mobile none · Verizon none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Address
- 6563 Hauser Dam Road, Helena, MT 59602
- Phone
- 406-458-3221
About
Black Sandy State Park on Hauser Reservoir is a Montana FWP state park with 29 electric campsites plus 6 first-come-first-served non-electric tent sites.
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 | 30° | 13° | -31° | 44° | 11 of 11 |
| February | 32° | 13° | -26° | 52° | 11 of 11 |
| March | 43° | 26° | -3° | 57° | 11 of 11 |
| April | 49° | 31° | 2° | 72° | 10 of 11 |
| May | 63° | 41° | 28° | 81° | 1 of 11 |
| June | 73° | 51° | 37° | 96° | 0 of 11 |
| July | 86° | 61° | 44° | 97° | 0 of 11 |
| August | 85° | 60° | 45° | 98° | 0 of 11 |
| September | 74° | 51° | 37° | 90° | 0 of 11 |
| October | 59° | 36° | 22° | 79° | 7 of 10 |
| November | 44° | 28° | -7° | 64° | 9 of 10 |
| December | 34° | 18° | -1° | 50° | 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
- White Sandy Campground · Bureau of Land Management · 0 mi · 31 sites
- Devil's Elbow Campground · Bureau of Land Management · 5 mi · 49 sites
- Spokane Bay · Bureau of Land Management · 7 mi
- Coulter Campground · USDA Forest Service · 8 mi
- Beartooth Landing · Bureau of Land Management · 10 mi
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.