Skip to main content

Discover Western Montana Naturally

Experience Comfortable RV Stays

We provide comfortable RV sites, practical amenities, and personalized hospitality, giving travelers a convenient place to stay, relax, and explore western Montana.

Get in touch Call now

Our Services

Our vision is to maintain a quiet, welcoming RV park where responsible energy use, access to outdoor recreation, and attentive local service support enjoyable stays year-round.

A scenic daytime camping setup with a caravan and truck by a lake in a natural setting.

RV Hookups

For convenient stays, we provide RV hookups with water and electric connections, keeping essential utilities accessible throughout your visit.

A beautiful campsite featuring RVs amidst lush forests and towering mountains for a peaceful getaway.

Pull-Through Sites

Designed for easier arrival and departure, our pull-through sites accommodate RVs with straightforward access and convenient site placement.

Vintage camper trailers set amidst trees in a peaceful Texas forest scene.

RV Dump Station

When you need to empty your RV tanks, we provide an on-site dump station, helping simplify routine waste disposal during your stay.

A couple of rvs parked in a garage

RV Storage

For guests who need a place for their RV between trips, we offer RV storage as a practical option for keeping your vehicle on-site.

A serene lakeside camping scene with a caravan overlooking a picturesque landscape.

RV Parking

During your stay, we provide designated RV parking, giving you a convenient space to keep your vehicle while enjoying the property.

RV Sites

55' Site$65 per night

70' Pull-Through$75 per night

80' Pull-Through$95 per night

90' Pull-Through$115 per night

90' site includes two electric pedestals.

Showers & Bathroom

Shower only$15

Bathroom onlySmile

Only porta-potty is available currently. Our new bath house is not quite ready.

RV Dump Station NOW OPEN

Overnight RV guests$5

Non-RV customers$25

Why is there a dump station fee?

Our RV dump station is pumped and hauled away rather than discharged into the ground.

This helps us protect the groundwater and keep the property environmentally responsible.

The $5 fee for overnight RV guests helps cover the cost of pumping and hauling RV wastewater.

Non-RV customers may use the dump station for $25.

Why Choose Us

Personalized Hospitality

With a local approach, we offer personalized hospitality and create a welcoming stay for every guest.

Restrooms & Showers

Guests can access on-site restrooms and showers, providing practical amenities throughout their stay.

Reservations Accepted

To help guests plan, we accept reservations, making it easier to arrange an RV stay.

Location map

Click to load interactive map

Ready to book your RV Park stay?

Contact us today to reserve your pull through site or RV hookups at our campground in Plains, MT.

Get in Touch

Tell us a bit about your project. We'll get back to you the same day.

Working with us

How it works

Reach Out

Tell us when you're planning to visit, and we can help with reservations and questions about your stay.

Plan Your Stay

Choose the RV accommodations and amenities that fit your trip, with pull-through sites, water and electric hookups, WiFi, and long-term stays available.

Settle In

Arrive and enjoy our quiet, family-run RV park, with restrooms, showers, laundry facilities, and an on-site dump station for added convenience.

Explore Montana

Make the most of your stay by visiting nearby Quinn's Hot Springs, the Flathead and Clark Fork Rivers, and other outdoor destinations in western Montana.

Frequently Asked Questions

What are the hours of operation at McMillan Post RV park?

We're open 24/7 every day of the week, Monday through Sunday. You can arrive or reach out to us anytime that works for your schedule.

Do you accept walk-in customers or do I need to make a reservation in advance?

We welcome walk-ins, though we recommend contacting us in advance to ensure site availability, especially during peak seasons. Get in touch ahead of your arrival to secure your spot.

What RV hookup options are available at your campground?

Our campground offers full RV hookups to support your comfort. We provide connections you need for extended stays in Plains, MT. Contact us to discuss your specific hookup requirements.

Do you have pull-through sites for larger RVs?

Yes, we offer pull-through sites designed for larger RVs. These sites make setup and departure easier. Reach out to confirm availability and reserve your pull-through spot in our RV park.

Where is McMillan Post RV park located?

McMillan Post is located in Plains, MT. We serve the Plains area and welcome RV travelers looking for quality campground accommodations in Montana.

Can I dump my RV waste at your facility?

We have an RV dump station on-site. It's convenient for our guests to empty waste tanks before departure or between trips. Stop by anytime during your stay.

See all questions

Ready to reserve your perfect RV spot?

Contact us today to book one of our pull through sites with full RV hookups at McMillan Post in Plains, MT.

Book Now Call (406) 693-8627 Book Online