Experience Montana at its finest at this extraordinary 40-acre private retreat in Marion, where breathtaking mountain views, exceptional craftsmanship, and unmatched privacy come together. Beautifully remodeled and bordering conservation land, this remarkable property offers a rare opportunity to enjoy a true sanctuary just minutes from the crystal-clear waters of McGregor Lake. The thoughtfully designed main residence features 3 bedrooms, 3 bathrooms, soaring 26-foot vaulted ceilings, locally milled larch and fir hardwood floors, blue pine ceilings, a stunning Flathead stone fireplace, and spa-inspired amenities including heated bathroom floors, a steam shower, and a Japanese soaking tub. A charming guest cabin with its own septic, electrical service, RV hookups, and matching steam shower creates an ideal space for guests or extended stays. Built for both luxury and self-reliance, the property includes an ICF foundation, concrete siding, metal roof, underground 1,000-gallon propane tank, generator, gravity-fed septic system, fiber optic conduit, and dual 200-amp electrical service. Curated gardens, a fenced yard, second driveway with future building potential, and abundant wildlife complete this exceptional Montana estate where recreation, comfort, and privacy are seamlessly woven together. Take a look at the feature sheet!
Active
Price cut: $320K (8/26)
$1,950,000
10830 Lost Prairie Rd, Marion, MT 59925
3beds
3,375sqft
Single Family Residence
Built in 2015
40 Acres Lot
$1,873,900 Zestimate®
$578/sqft
$-- HOA
What's special
Charming guest cabinSecond drivewayBreathtaking mountain viewsAbundant wildlifeSteam showerStunning flathead stone fireplaceHeated bathroom floors
- 72 days
- 372
- 22
Zillow last checked:
Listing updated:
Listed by:
Sonja Burgard 406-871-0372,
National Parks Realty - Whitefish
Source: MRMLS,MLS#: 30073882
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 5
- Full bathrooms: 3
- 3/4 bathrooms: 1
- 1/2 bathrooms: 1
Cooling
- Central Air
Appliances
- Included: Dryer, Dishwasher, Microwave, Range, Refrigerator, Water Softener, Water Purifier, Washer
- Laundry: Washer Hookup
Features
- Basement: Finished,Walk-Out Access
- Number of fireplaces: 2
Interior area
- Total structure area: 3,799
- Total interior livable area: 3,375 sqft
- Finished area below ground: 1,360
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Garage - Attached
- Attached garage spaces: 2
Features
- Patio & porch: Deck, Terrace, Balcony
- Exterior features: Balcony, Fire Pit, Garden, Storage
Lot
- Size: 40 Acres
Details
- Parcel number: 07382920201200000
- Special conditions: Standard
- Other equipment: Generator
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Foundation: Slab
Condition
- New construction: No
- Year built: 2015
Utilities & green energy
- Sewer: Private Sewer, Septic Tank
- Water: Well
Community & HOA
HOA
- Has HOA: No
Location
- Region: Marion
Financial & listing details
- Price per square foot: $578/sqft
- Tax assessed value: $1,350,506
- Annual tax amount: $5,239
- Date on market: 7/8/2026
- Listing agreement: Exclusive Right To Sell
Estimated market value
$1,873,900
$1.78M - $1.97M
$4,813/mo
Price history
| Date | Event | Price |
|---|---|---|
| 8/26/2026 | Price change | $1,950,000-14.1%$578/sqft |
Source: | ||
| 7/29/2026 | Price change | $2,270,000-9.2%$673/sqft |
Source: | ||
| 7/8/2026 | Listed for sale | $2,499,000+19%$740/sqft |
Source: | ||
| 2/8/2023 | Listing removed | -- |
Source: | ||
| 6/3/2022 | Sold | -- |
Source: | ||
| 3/18/2022 | Contingent | $2,100,000$622/sqft |
Source: | ||
| 2/20/2022 | Listed for sale | $2,100,000+13.5%$622/sqft |
Source: | ||
| 2/15/2022 | Contingent | $1,850,000$548/sqft |
Source: | ||
| 2/14/2022 | Listed for sale | $1,850,000$548/sqft |
Source: | ||
| 2/2/2022 | Contingent | $1,850,000$548/sqft |
Source: | ||
| 10/16/2021 | Listed for sale | $1,850,000+8.9%$548/sqft |
Source: | ||
| 8/31/2021 | Listing removed | $1,699,000$503/sqft |
Source: | ||
| 8/4/2021 | Listed for sale | $1,699,000+13.3%$503/sqft |
Source: | ||
| 8/1/2021 | Listing removed | $1,499,000$444/sqft |
Source: | ||
| 6/14/2021 | Price change | $1,499,000-6.3%$444/sqft |
Source: | ||
| 4/20/2021 | Listed for sale | $1,599,000$474/sqft |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $4,861 -4.6% | $1,350,506 +22% |
| 2024 | $5,096 +1.9% | $1,107,341 |
| 2023 | $5,001 -1.2% | $1,107,341 +36% |
| 2022 | $5,061 +67.7% | $814,061 +64.1% |
| 2021 | $3,018 +6.2% | $496,031 +20.9% |
| 2020 | $2,843 -2.8% | $410,134 |
| 2019 | $2,924 +7.8% | $410,134 +16.8% |
| 2018 | $2,712 -0.1% | $351,274 |
| 2017 | $2,713 +19.2% | $351,274 +1270.8% |
| 2016 | $2,276 | $25,625 |
| 2015 | $2,276 +2099.6% | $25,625 -37.9% |
| 2014 | $103 | $41,285 |
Find assessor info on the county website
Monthly payment
Est. payment




