Blog · October 14, 2026 · Montana
Using a Garfield County Plat Book today
For land near Jordan, plat books show ownership by township; the parcel viewer shows it today.
Main page: Garfield County, MT GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
Hunting for the latest Garfield County plat book? These atlases map who owns rural land, page by page, popular with hunters, farmers and buyers near Mosby. This Garfield County guide covers: how the atlas is organized, where to find editions, and the free online map that stays current.
Getting started with the Garfield County plat book
Out toward Mosby, a plat book is a privately published atlas, that map ownership across the countryside, page by page across the county.
Where the parcel data lives
Your first stop is the Montana Cadastral; it covers each assessed parcel from Sand Springs to Jordan. For acreage around Big Dry, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. With a lot near Big Dry, save the parcel ID from that panel; every clerk in the county uses it to find the file.
Using it on a phone
The parcel map usually runs in a mobile browser, useful out on a road near Mosby, so load it before you lose signal. A saved image of the lot near Brusett and its lines keeps working without signal.
Land on the county line
Garfield County borders Custer County, McCone County, Petroleum County, Phillips County, and Prairie County; every one of them runs a separate parcel map. Acreage along the edge near Big Dry can be split in two county records, so open the neighboring map before you assume the acreage. With a lot near Brusett, the Platbookmapper state page links every neighboring county map across Montana.
Backing up the map with records
For land near Mosby, the map is an index, not the title: deeds, plats and easements for parcels in the county are filed with the County Clerk and Recorder. For property near Cohagen, bring the instrument number listed on the parcel record so staff can find the deed fast.
What the map can't tell you
Acreage on the record is an estimate; only a licensed surveyor can set the real boundary for a parcel near Brusett. In and around Big Dry, owner names and values update on a schedule, so a deed recorded last month can take weeks to appear.
Garfield County in a few facts
Jordan holds the county offices, where most land records are kept. Smaller places on the map include Big Dry, Brusett, Cohagen, and Mosby, where town lots give way to larger tracts. About 1,211 people live in Garfield County (Census estimate, 2023) spread over roughly 4,677 square miles. Garfield County dates to 1919, and some chains of title near Jordan are long.
Getting answers from the right desk
For assessment questions about property around Sand Springs are handled by the Montana Department of Revenue, since that office keeps the assessment data. Zoning, permits and septic questions near Jordan go to planning, building or health offices, and the answer depends on jurisdiction.
Buying or borrowing a copy
Editions come and go depending on publishers, check with local offices and farm stores near Cohagen.
A homemade atlas
Screenshot each section of the viewer around Cohagen to build your own up-to-date atlas.
Between editions
For land near Big Dry, the Montana Cadastral is updated more often than any atlas, across the county.
How land is described here
Montana uses the Public Land Survey System, so rural legal descriptions near Cohagen cite section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though corrections make some sections near Cohagen odd-sized. Copy the legal description from the record for the parcel near Sand Springs when you talk to a surveyor.
Plat book vs. recorded plat
For property near Jordan, a plat book is not a recorded plat: the recorded plat at the County Clerk and Recorder is a legal document, and the atlas is just a guide.
Why people still buy them
Buyers and seed dealers around Cohagen rely on them for a big-picture view of who owns what.
Quick answers
Should I use the Montana Cadastral instead in Garfield County?
For property near Big Dry, the Montana Cadastral is free and updated more often; a printed atlas is still handy offline.
Where can I buy a plat book for land near Big Dry?
For acreage around Cohagen, editions come and go.
Is a plat book the same as a recorded plat near Mosby?
For property near Brusett, a plat book is a privately published atlas; use a surveyor for lines.
Are plat book lines exact near Big Dry?
Near Sand Springs, plat book acreage and lines are approximate; they're good for orientation.
Why do offices ask for the parcel ID for land near Mosby?
Every office uses it to pull the same file for land near Brusett; you'll see it in the viewer and on tax statements.
Open the official Garfield County, MT parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.