Blog · October 17, 2026 · Montana
Dillon Plat Map: finding the recorded plat
Lots in Dillon trace back to recorded plats filed with the county.
Main page: Beaverhead County, MT GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a listing near Argenta mentions a lot number, look up the Dillon plat map it refers to. This Dillon guide covers: where to request a copy, how a plat differs from a parcel map, and the details that matter to buyers.
The Dillon plat map: start here
For a subdivision near Lima, the deed usually cites the plat; use it to request a copy.
Pulling up a parcel
Your first stop is the Beaverhead County ArcGIS parcel map; it maps each assessed parcel around Argenta and Lima. For property near Argenta, type a street address, an owner's name or a parcel number, then pick the result to center the map on it. For a tract near Argenta, write down the parcel ID before closing the panel; each office in the county will want it.
Recorded documents worth pulling
For anything that matters, pull the recorded deed through the County Clerk and Recorder; the parcel map near Lima only summarizes it. Long-held tracts around Lima may trace back through many deeds, and a title company can sort it out if money is changing hands.
Getting your bearings
Dillon is the county seat, which is where the courthouse records live. You'll also find Lima and Argenta, where town lots give way to larger tracts. Around 9,885 people live in Beaverhead County (Census estimate, 2023) spread over roughly 5,543 square miles. Beaverhead County dates to 1865, so old deeds can run back a long way. Features like Big Hole River and Beaverhead National Forest help you orient on the aerial around Argenta.
Dillon and the county around it
Dillon is part of Beaverhead County, Montana, and the county assessor maps its lots. As the county seat, Dillon hosts the courthouse, so deeds and plats are filed in town. Out toward Argenta, city or town hall handles things like zoning, permits and utilities for lots inside the boundary, and the county still keeps the parcel and deed records. Acreage past the town limits out by Argenta often falls under county rules rather than the town's.
Before you lean on the lines
Acreage on the record is an assessed number; just a licensed surveyor establishes the real boundary on land around Argenta. For a tract near Argenta, records update in batches, so a deed recorded last month might lag behind.
Two different maps
The tax map on the Beaverhead County ArcGIS parcel map is a summary, but the recorded plat is what the deed relies on.
When a plat changes
Lots near Lima can be combined or reconfigured by a replat, search the index for replats of the same subdivision; vacated streets or alleys also get recorded.
Field tips
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Argenta, though signal can drop in rural spots. A saved image of the lot near Argenta and its lines is a good backup.
Land outside a subdivision
Rural land near Argenta that was never subdivided may have no plat at all; look for a recorded survey for land there.
What a plat shows
For acreage around Argenta, the sheet usually includes lot and block numbers, dimensions and bearings, street rights-of-way and easements.
Land on the county line
Beaverhead County borders Clark County, ID, Fremont County, ID, Lemhi County, ID, Deer Lodge County, and Madison County; every one of them runs a separate parcel map. Ground near Argenta that runs to the line may be split in two county records, so look at the adjacent map too. In and around Lima, the Platbookmapper state page lists each neighboring county map across Montana.
Legal descriptions in Montana
Montana is laid out under the Public Land Survey System, so rural legal descriptions near Argenta cite section, township and range. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though sections near Argenta can be irregular. Keep the legal description for land near Argenta for any title or survey request.
Requesting the plat
Around Argenta, many recorder offices offer an online index, while others require a visit or a request; small fees are common.
Getting answers from the right desk
Deeds, mortgages and recorded plats for land near Lima are with the County Clerk and Recorder, often with an online index. Zoning, permits and septic questions near Argenta go to planning, building or health offices, and the answer depends on jurisdiction.
Frequently asked
What do the dashed lines on a plat mean around Argenta?
For a parcel near Argenta, recorded plat easements usually show on the sheet, so check before you build.
What is a lot and block description in Dillon?
On ground around Lima, the description sends you to a specific recorded plat; the deed names the subdivision.
Where are historic plats for Dillon?
Out toward Lima, it varies; some offices have scanned older plats and some haven't, including older subdivisions.
Is a plat map a survey around Argenta?
The plat near Lima is recorded, while the GIS layer is an approximation.
Who keeps deeds for property in Dillon?
For land near Lima, assessment goes to the Montana Department of Revenue and deeds to the County Clerk and Recorder; planning offices cover zoning near Argenta
Open the official Beaverhead 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.