Off-grid site report

Liberty County, MT

48.7850, -111.1608 · 3,993 ft elevation

Read this before you act on anything below. This is my researched starting point for Liberty County, MT, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.

The local rulesLiberty County, MT

Zoning & raw-land occupancy

Unclear - verifyMontana counties must affirmatively adopt zoning through a petition process; no official record of Liberty County having done so was found. Ask the Liberty County Courthouse directly. source

Dwellings, tiny homes & RVs

Unclear - verifyNo Liberty County-specific rule on tiny homes or RVs was found. State baseline: IRC Appendix Q applies to foundation-built tiny homes statewide, wheeled units are generally treated as RVs.

Building permits & codes

Unclear - verifyMontana exempts single-family homes from state building-code permitting unless the county has opted in; whether Liberty County has opted in is not confirmed. source

Septic & composting toilets

Generally allowedMontana DEQ sets statewide minimum wastewater standards under Circular 4 / ARM 17.36, and counties typically administer permitting against that framework via site evaluation. No Liberty County-specific document was found. source

Greywater reuse

RestrictedState rule allows in-home greywater reuse (like toilet flushing) without a permit if disposed through a compliant system; subsurface irrigation has additional state restrictions. No Liberty County variation found.

Rainwater harvesting

Generally allowedNo statewide or Liberty County prohibition found on basic rooftop rainwater collection for personal, non-potable use.

Private wells & water rights

Generally allowedMontana DNRC's exempt-well provisions allow small wells without a pre-drilling permit, subject to filing a notice of completion with the state. No Liberty County variation found. source

Living disconnected from utilities

Unclear - verifyNo statewide or Liberty County statute was found requiring grid connection for a private single-family home; local subdivision requirements are not confirmed.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 4.5 hrs/day
Worst month (sizes an off-grid array): 2.2 hrs/day
Yearly output per 1 kW of panels: 1,319 kWh

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Weather1991-2020

Precipitation: 14 in/yr
Snowfall: 83 in/yr
Heating degree days: 8,174 (severe)

How far help isstraight-line

Hospital Logan Health - Chester: 20.9 mi
Fire station: none within range
Hardware store Hi-Line Hardware: 20.8 mi
Grocery: none within range

From OpenStreetMap. Road miles will be longer, often much longer in hill country.

Plan this spot

These open with this location's real numbers already filled in (ZIP 59545).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 21, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.