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Quick facts

LocationBig Arm, Montana
Nightly rate (listed)$18–$140/night
Maximum RV length45 ft (longest listed site)
Hookupselectric
Pull-through sitesYes
RV sites39
Boat rampYes
Book onMontana State Parks

Amenities

  • Big rigs Big-rig friendly: the longest listed site is 45 ft. Check your site's length when you book.
  • Pull-through Pull-through sites, per the listing.
  • Boat ramp Boat ramp or launch, per the listing.
  • Public land Public campground: State land.

From the park's listing on Montana State Parks. Confirm details with the park before you book.

More Montana RV parks with: Pull-Through Sites · Big Rig Sites

Other RV parks near Big Arm Unit - Flathead Lake State Park

  • Camp Ka Papa Old US Hwy 93 Elmo, MT · 1.8 mi straight-line
  • Lake Mary Ronan State Park Lake Mary Ronan, MT · 8.7 mi straight-line
  • Polson / Flathead Lake KOA Holiday Polson, MT · 9.7 mi straight-line
  • Finley Point Unit - Flathead Lake State Park Polson, MT · 10.8 mi straight-line
  • West Shore Unit - Flathead Lake State Park Lakeside, MT · 11.3 mi straight-line
  • Outback Montana RV Park & Campground Bigfork, MT · 18.4 mi straight-line
  • Wayfarers Unit - Flathead Lake State Park BigFork, MT · 19.9 mi straight-line
  • Diamond S RV Park - Ronan, MT Ronan, MT · 21.1 mi straight-line
  1. Home
  2. Montana
  3. Big Arm
  4. Big Arm Unit - Flathead Lake State Park

Where Big Arm Unit - Flathead Lake State Park fits

Nearest alternatives
Camp Ka Papa Old US Hwy 93 (1.8 mi) · Lake Mary Ronan State Park (8.7 mi) · Polson / Flathead Lake KOA Holiday (9.7 mi)

Other nearby options

Closest stays by type. Distances are straight-line from Big Arm Unit - Flathead Lake State Park, not driving.

  • Closest glampingCamp Ka Papa Old US Hwy 931.8 mi away (straight-line) · PrivateAvailable for your datesCamp Ka Papa Bear's Lodge Site#6: $267/nightCheck availability on Hipcamp ↗
  • Closest private full-hookupDiamond S RV Park - Ronan, MT21.1 mi away (straight-line) · PrivateAvailable for your dates30amp Pull Thru FHU Site: from $59/nightCheck availability on Campspot ↗

Not confirmed open for your dates

  • Closest public / first-comeLake Mary Ronan State Park8.7 mi away (straight-line) · PublicFirst come, first servedCheck availability on Montana State Parks ↗
  • Next closestPolson / Flathead Lake KOA Holiday9.7 mi away (straight-line) · PrivateCheck availabilityCheck availability on KOA ↗

Other stays nearby

Available Oct 30 – Nov 1 · 2 nights5 sites open for every night

Camp Ka Papa Old US Hwy 93

1.8 mi from Big Arm Unit - Flathead Lake State Park (straight-line)
Tent sites · RV sites · Cabins / glamping
Sites from $100/night
$200 total for Oct 30 – Nov 1 · before taxes & fees
Rates & availability from Hipcamp · you book on their site
View Campsites
Available Oct 30 – Nov 1 · 2 nights6 sites open for every night

Diamond S RV Park - Ronan, MT

21.1 mi from Big Arm Unit - Flathead Lake State Park (straight-line)
Full-hookup RV sites · Cabins / glamping
Sites from $59/night
$118 total for Oct 30 – Nov 1 · before taxes & fees
Rates & availability from Campspot · you book on their site
View Campsites
First come, first served

Lake Mary Ronan State Park

8.7 mi from Big Arm Unit - Flathead Lake State Park (straight-line)
Tent sites · RV sites w/ hookups
No reservations, so no live availability
Rates & availability from Montana State Parks · you book on their site
View Campsites

Big Arm Unit - Flathead Lake State Park

State park · Big Arm

This weekend · First come, first servedNo reservations, so no live availability

Book on Montana State Parks
28031 Big Arm State Park Rd.
Saving doesn't reserve a site.
SitesAmenitiesLocationPolicies

About this campground

Big Arm Unit - Flathead Lake State Park is a Montana State Parks campground in Big Arm. It lists 39 RV or RV/tent sites, 3 tent sites and 3 cabin or glamping units for rigs up to 45 ft. 1 site has electric. Pets are allowed per the listing.

Highlights

  • Electric sitesElectric hookups available
  • Rigs up to 45 ftLongest RV site on the Montana State Parks site list
  • Cabins or glampingCabins available
  • Boat rampListed amenity on Montana State Parks

Good for

Big rigs (up to 45 ft)Tent campingCabins / glampingDogsBoaters

Know before you go

  • Longest listed RV site is 45 ft; individual sites vary, so check the site length when booking.
  • You book directly with Montana State Parks; prices and availability can change until booked.
  • Bathhouse
  • Boat Ramp
  • Campground Host
  • Camping Improved Site
  • Comfort Station
  • Day Use Group Shelter
All amenities

Amenities

BathhouseBoat RampCampground HostCamping Improved SiteComfort StationDay Use Group ShelterDock BoatInformation Contact StationPicnic AreaPicnic ShelterRetail FirewoodRetail IceToilet Pit Vault

Nearby activities

Hiking TrailPicnickingSwimming Park LakeWildlife Viewing

Find your campsite

Checking 2 nights (your saved dates or this weekend). Tell us what you're staying in to see matching sites and prices.

Every site at this campground

Availability checked Oct 25 on Montana State Parks. Rates are the provider's nightly rates; totals are estimates before taxes & fees.

0 open of 44 sites
Mission
Yurts loopCapacity not listed
Not available Oct 30–Nov 1
Rate not listed
Salish
Yurts loopCapacity not listed
Not available Oct 30–Nov 1
Rate not listed
Swan
Yurts loopCapacity not listed
Not available Oct 30–Nov 1
Rate not listed
Site A001 · Big Arm Unit - Flathead Lake State Park, Montana - Campsite
Loop ASite length up to 18 ftHookups not listed
Not available Oct 30–Nov 1
$14/night
Site B001 · Big Arm Unit - Flathead Lake State Park, Montana - Campsite
Loop BSite length up to 45 ftHookups not listed
Not available Oct 30–Nov 1
$14/night
Site T001 · Site
Loop B
Not available Oct 30–Nov 1
$14/night
Site A002 · Big Arm Unit - Flathead Lake State Park, Montana - Campsite
Loop ASite length up to 18 ftHookups not listed
Not available Oct 30–Nov 1
$14/night
Site B002 · Big Arm Unit - Flathead Lake State Park, Montana - Campsite
Loop BSite length up to 30 ftHookups not listed
Not available Oct 30–Nov 1
$14/night

Check visiting information

You book with the provider. Each row shows that provider's lowest open option for your dates, and which provider our main button uses.

Montana State Parks (via ReserveAmerica feed)Main booking button
Availability & rates from this provider, checked Oct 25
First come, first served
Book with Montana State Parks ↗
Pick your dates again on this provider's site.
View full availability calendar · night-by-night from ReserveAmerica

Availability checked Oct 25 on ReserveAmerica. Showing 40 of 45 sites.

SiteFr
30
Sa
31
Price
A008
loop a
WW$14
A009
loop a
WW$14
A010
loop a
WW$14
A011
loop a
WW$14
A012
loop a
WW$14
A013
loop a
WW$14
A014
loop a
WW$14
A015
loop a
WW$14
A016
loop a
WW$14

Location & access

This weekend (Fri, Oct 30 – Sun, Nov 1): Book online. Reservations online on Montana State Parks — open dates and rates come from the booking site.

Longest RV site listed: 45 ft. Unsure if your rig fits? Check it in the Rig Fit tool

Location

28031 Big Arm State Park Rd.
Open in Google Maps ↗

Policies

Check-in
2:00 PM
Check-out
1:00 PM

About

The park is located on the southwest shore of Flathead Lake and offers spectacular views of the Mission Mountains. It is a popular launch spot to Wild Horse Island. Many of the 40 campsites are situated along the shoreline. The park also has 3 yurts, showers and flush toilets. Swimming, sunbathing, boating, fishing and hiking on the nature trail are some of the popular activities. This park and the southern end of Flathead Lake are located on the Flathead Indian Reservation, so you will need a Confederated Salish and Kootenai Tribe fishing license to enjoy the excellent fishing here.

Policies & rules

Key facts

Max rig length
Longest RV site listed: 45 ft (38 of 39 RV sites list a length) Listing
Hookups & power
1 electric site Listing
Pets
Pets allowed Listing
Booking
Reservable on ReserveAmerica Listing
Getting there
28031 Big Arm State Park Rd. (map in Location below) Listing
All 15 facts with sources ↓
Why stay here and common questions

Why stay here?

  • RV sites listed for rigs up to 45 ft.
  • Has yurts if you don't want to bring gear.
  • Public-land campground run by a federal or state agency.

Big Arm Unit - Flathead Lake State Park: questions answered

What is the maximum RV length at Big Arm Unit - Flathead Lake State Park?
Longest RV site listed: 45 ft (38 of 39 RV sites list a length) (per the listing)
Does Big Arm Unit - Flathead Lake State Park have RV hookups?
1 electric site (per the listing)
How do I reserve a site at Big Arm Unit - Flathead Lake State Park?
Reservable on ReserveAmerica (per the listing)
Are pets allowed at Big Arm Unit - Flathead Lake State Park?
Pets allowed (per the listing)
At a glance: all 15 facts with sources

Quick facts

Agency / operatorNot listed
BookingOnline via ReserveAmerica (booking listing; window not listed)
First come, first served

View campground on Montana State Parks ↗

Availability checked Oct 25 on Montana State Parks.

You book each site directly with Montana State Parks. Prices and availability can change until booked.

Walk-up only
B001
loop b
WW$14
B002
loop b
WW$14
B003
loop b
WW$14
B005
loop b
WW$14
B006
loop b
WW$14
B007
loop b
WW$14
B008
loop b
WW$14
B009
loop b
WW$14
B010
loop b
WW$14
B011
loop b
WW$14
B012
loop b
WW$14
B013
loop b
WW$14
B014
loop b
WW$14
B015
loop b
WW$14
B016
loop b
WW$14
B017
loop b
WW$14
B018
loop b
WW$14
B019
loop b
WW$14
B020
loop b
WW$14
B021
loop b
WW$14
B022
loop b
WW$14
T001
loop b
WW$14
T002
loop b
WW$14
T003
loop b
WW$14
A001
loop a
XX$14
A002
loop a
WW$14
A003
loop a
WW$14
A004
loop a
WW$14
A005
loop a
WW$14
A006
loop a
WW$14
A007
loop a
WW$14

✓ available · R reserved · X not available · C closed · W first come, first served · N not yet released

Max RV / trailer length
Not listed
Bear storageNot listed
SeasonNot listed
HookupsNot listed

"Not listed" means no source we use states it.

At a glance

Official facts link to their source; “Listing” facts come from the ReserveAmerica listing. Anything we can't source says so.

Max rig length
Listing Longest RV site listed: 45 ft (38 of 39 RV sites list a length)
Hookups & power
Listing 1 electric site
Pull-through / back-in
Listing 5 pull-through, 35 back-in
Road & site access
Listing 1 paved, 39 gravel site driveways
Pets
Listing Pets allowed
Shade
Listing 45 of 45 sites that report shade are listed as shaded
Booking
Listing Reservable on ReserveAmerica
Price
Listing Lowest listed rate $18/night (live price once you pick dates)
Getting there
Listing 28031 Big Arm State Park Rd. (map in Location below)
Generators · Quiet hours · Cell signal · Starlink / satellite · Water · Stay limits
Not listed — check with campground