Blog · October 14, 2026 · Idaho
Using a Fremont County Plat Book today
For a tract near Parker, plat books show ownership by township; the parcel viewer shows it today.
Main page: Fremont County, ID GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Want a copy of the Fremont County plat book? These atlases map who owns rural land, page by page, useful for farms near Island Park. Covered here for Fremont County: what's in a plat book, where to find editions, and how the county viewer fills the gaps.
Getting started with the Fremont County plat book
Town lots near Lake are usually too small to label, which is where the parcel viewer helps.
Pulling up a parcel
Lots and tracts near Wilford are published on the Idaho statewide Parcels layer in ArcGIS Map Viewer, free to use and open without a login. If you only know roughly where the land is, zoom in from Island Park and click the parcel itself. Closer to Squirrel, save the parcel ID while you have it open; every clerk in the county asks for it first.
Buying or borrowing a copy
Libraries near Yellowstone National Park sometimes keep past atlases, useful for family or title research.
Neighboring parcel maps
Fremont County touches Clark County, Jefferson County, Madison County, Teton County, and Beaverhead County, MT; every one of them runs a separate parcel map. A tract near the line by Island Park can show up across two assessors' files, so look at the adjacent map as well. If the land is near Squirrel, our state page links every bordering county map for Idaho.
A homemade atlas
Screenshot each section of the viewer around Yellowstone National Park to build your own up-to-date atlas.
Reading the legal description
Idaho follows the Public Land Survey System, which means a tract near Island Park is described by 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 Caribou-Targhee National Forest odd-sized. Write down the legal description for the tract near Wilford for any title or survey request.
Limits of the parcel data
Tax maps are drawn for assessment, not surveyed, so a fence near Newdale may sit several feet off the line on screen. Owner names and values update on a schedule, so a recent sale near Drummond may not show yet.
Getting answers from the right desk
Deeds, mortgages and recorded plats for land near Newdale come from the County Recorder (the county clerk serves as recorder), usually searchable by name or document number. Questions about what you can build around Parker need the planning or permitting office, and the answer depends on jurisdiction.
Taking the map into the field
The parcel map usually runs in a mobile browser, useful out on a road near Lake, but coverage can be spotty out of town. A saved image of the lot near Teton and its lines keeps working without signal.
Backing up the map with records
For anything that matters, request the recorded deed through the County Recorder (the county clerk serves as recorder); the viewer just points to it, and that holds around Lake too. For property near Ashton, bring the instrument number from the tax record so staff can find the deed fast.
Between editions
If you're looking near Parker, the Idaho statewide Parcels layer in ArcGIS Map Viewer is updated more often than any atlas, across the county.
Places you'll see on the map
St. Anthony is the county seat, home to the main records offices. Smaller places on the map include Ashton, Drummond, Island Park, and Newdale, each with its own cluster of lots. Around 14,196 people live in Fremont County (Census Bureau estimate, 2023) on about 1,864 square miles. Fremont County was organized in 1893, which matters when you trace an old farm's title. Features like Yellowstone National Park help you orient on the aerial.
Two kinds of plat
A plat book is not a recorded plat: recorded plats near Newdale are filed with the County Recorder (the county clerk serves as recorder), and the atlas is just a guide.
Why people still buy them
Farmers, hunters and appraisers near Caribou-Targhee National Forest use plat books to see ownership across many tracts at once.
Questions about the Fremont County plat book
Are old plat books online for land near Newdale?
Out toward Lake, libraries and historical societies hold older editions; availability varies.
Who sells plat books in Fremont County?
On ground around Island Park, editions come and go; online parcel maps fill the gaps.
Plat book or parcel viewer near Teton?
Usually, the viewer covers town lots near Drummond too.
Why does the plat book differ from the deed in Fremont County?
For acreage around Lake, the deed and a survey decide.
Is there a way to export the map around Lake?
In and around Island Park, most viewers have a print or export tool; downloads of raw data vary by county.
Open the official Fremont County, ID 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.