Blog · October 14, 2026 · Montana
Madison County Plat Book in Montana
Printed plat books and the free online map for owners around Virginia City.
Main page: Madison County, MT GIS & Parcel Viewer (official map link, Madison County facts and neighboring maps).
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A Madison County plat book is the township-by-township atlas farmers, hunters and land buyers around Ennis have kept in the truck for generations. This guide covers finding a printed edition for Madison County, Montana, and using the free parcel map in the meantime.
What a Madison County plat book is
Think of the Madison County plat book as a bound, printed version of ownership: township pages, owner names on each tract, and road maps for places like Twin Bridges. Deeds and recorded plats, not the atlas, still govern land near Brandon in the county.
Step one: the free Madison County viewer
Madison County publishes its parcels on the Madison County ArcGIS parcel map, which runs on an Esri ArcGIS web map, free to use for a lot in Sheridan or a tract near Twin Bridges. Expect a disclaimer screen the first time you open the Madison County map; accept it and the parcels load. Most people track down their Madison County tract fastest by searching an address in Twin Bridges, then clicking the outline. If the official address for the Madison County, MT map ever changes, our directory page carries the current link for Sheridan and the rest of the county.
The lay of the land around Virginia City
From Virginia City, the seat of the county, the map spreads out to Ennis, Sheridan, and Twin Bridges. Unincorporated communities in the county, including Alder, Big Sky, and Brandon, display up as small groups of parcels along the roads. Census Bureau estimates put Madison County at about 9,521 residents in 2023 on about 3,588 square miles of land. Beyond the town lots in Sheridan, expect big rural parcels across the county. Madison County was organized in 1865, so deeds for older farms near Twin Bridges can run back a long way.
Finding a printed Madison County plat book
Whether a current Madison County edition exists varies, so ask locally in Sheridan before ordering; county offices often know if one is in print. An old atlas can help trace when a tract near Twin Bridges split off from a larger farm.
Madison County land records
For land near Virginia City, the deed itself lives in the county recording office, and the map is an index to it. Easements and access rights near Sheridan live in recorded documents, so read the deed, not just the county map.
Atlas details and limits
A typical atlas page for a township near Twin Bridges shows sections, roads and streams, with each ownership block labeled. Small parcels and town lots in Twin Bridges are often too small to label on an atlas page, which is another reason the online map is better for them. If you use a plat book for hunting permission near Twin Bridges, recheck the titleholder on the county map first.
Old atlases and family history in Madison County
Comparing two Madison County editions side by side shows when a farm near Ennis was split or sold. If you can't track down a printed edition, a screenshot of each township from the county map serves as a handy homemade atlas for the area around Sheridan.
Work and land use in Madison County
Madison County's 2022 business count was 410 establishments, with construction, accommodation and food services, and retail trade the largest groups. Mining (except oil and gas) and accommodation (hotels, motels, RV parks and camps) make up an above-average share of Madison County businesses, a clue to how land around Virginia City gets used.
The free online alternative
For current ownership, the free Madison County ArcGIS parcel map beats any printed book: owners update as deeds are processed, and you can click any tract near Sheridan. Phone signal can be thin near Brandon, so save the parcel IDs you need well before you head out.
Quick answers for Madison County
Can I use a plat book to track down lot lines near Ennis?
Only roughly; a Madison County plat book is a reference, so a survey decides the real line.
Should I use the Madison County, Montana parcel map instead of a plat book?
The Madison County map is more current, while an atlas is handy offline near Brandon.
Is there a current plat book for Madison County, Montana?
It depends on if a publisher has a county edition in print; local offices in Ennis typically know.
Are older plat books for Madison County, Montana online?
Some libraries and historical societies keep older Madison County atlases; ask what's available near Virginia City.
Is a plat book the same as a recorded plat for a lot in Ennis?
No; a lot in Ennis answers to its recorded plat, and the county atlas is just a reference.
Open the official Madison County, MT parcel map Madison County 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.