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Big Horn County, MT · Sold

MT-338224

9640 County Road 309

$839,600
$1,551/ac · 541 ac
Acreage541 ac
Price per acre$1,551/ac
ZoningUnzoned
Road accessGravel
UtilitiesPower at road
TopographyWooded
ListedJun 10, 2026
Coordinates45.3925, -107.4989
Loading terrain…
County GIS boundary

We do not yet have an active public ArcGIS connection for this county. Use the official source link to verify the parcel boundary and flood/zoning layers.

County market

Big Horn County, Montana. Big-sky ranch splits; recreational amenity value increasingly outruns ag value.

View Big Horn market data →

Step 1 · Is this a deal?

Due diligence

No material red flags on the mapped layers.

Risk index
5
Low risk
Wetlands3.8% of tract

Little to no mapped wetland coverage.

Average slope6.5%

Gentle grade, straightforward to develop.

Flood zoneX

Outside the mapped floodplain.

Legal accessDeeded frontage

2,867 ft of deeded road frontage.

Power58 ft away

Power at or near the road.

Buildable area494.77 of 541.38 ac

Net of wetlands and slope constraints.

Step 2 · Where do the numbers land?

Adjusted value estimate
$743,023
$564,482$921,565 · $1,372/ac on 541 ac
Asking vs estimate
+13.0%
Priced above the comp set

Weighted from 10 recorded sales, adjusted for tract size, access, utilities and time since sale. Range width reflects dispersion across the comp set.

AI deal brief

Comps, diligence flags, an offer number and what to ask the seller.

Offer calculatorAsking $839,600
Maximum allowable offer
$424,585
$784/ac · +30.0% target margin

You need $415,015 off asking to hit this margin.

All-in cost$460,675
Net resale$683,581
Projected profit$222,907
ROI+48.4%
Annualized+69.2%
Break-even resale$925/ac
Profit if resale lands off target
-20%
$86,190
-10%
$154,549
0%
$222,907
+10%
$291,265
+20%
$359,623
Comparable sales10 matches
ParcelAcresSoldPrice$/acAdj $/acDistMatch
MT-258073
Landlocked · Off grid
485.3Jul 27, 2026$323,5006671,1182.9 mi
86
MT-837641
Gravel · Power at road
354.9Jul 27, 2026$774,1002,1811,9264.7 mi
83
MT-667025
Landlocked · Power at road
227.1Jul 27, 2026$345,5001,5211,7376.9 mi
78
MT-489651
Gravel · Power at road
1522.2Feb 17, 2026$1,328,5008731,2268.1 mi
74
MT-339381
Gravel · Power at road
1251.7Sep 30, 2025$971,2007761,0427.1 mi
74
MT-217697
Gravel · Power at road
369.6Nov 10, 2024$392,6001,0621,0175.0 mi
72
MT-677016
Dirt · Power at road
225.7Jul 13, 2025$290,1001,2861,2094.9 mi
71
MT-266808
Dirt · Power at road
194.1Jul 27, 2026$243,5001,2541,0849.1 mi
70
MT-707463
Landlocked · Off grid
311.9Feb 25, 2025$338,6001,0851,6924.3 mi
67
MT-456603
Gravel · Power at road
167.3Nov 29, 2024$366,2002,1891,6693.5 mi
64
Show adjustment detail for the top comp
  • Tract size (485.29 ac → 541.38 ac)-3.3%
  • Access (Landlocked → Gravel)+47.1%
  • Utilities (Off grid → Power at road)+17.6%

Step 3 · Market it

Turn this underwriting into a listing

Generate a comp-priced headline, listing description, land-group post and cash-buyer email for this tract — then post it to the investor marketplace.