Blog · October 13, 2026 · Wyoming
Using the Sweetwater County GIS Map
The free official GIS map for Sweetwater County, how to search it, and what the parcel data does and doesn't tell you about owners, acreage and property lines.
Main page: Sweetwater County, WY GIS & Parcel Viewer (official map link, Sweetwater County facts and neighboring maps).
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If you're pricing land, checking a fence line or tracking down an owner for hunting permission, start with the Sweetwater County GIS map. The official parcel map for Sweetwater County, Wyoming is free and opens without a login.
We'll cover the official map, the communities and terrain around Wamsutter, how property lines work in Wyoming, and where the deeds come from.
Getting into the Sweetwater County parcel viewer
Open the Sweetwater County parcel viewer, the map the county itself publishes for Granger and the rest of Sweetwater County. The quickest search in Sweetwater County is usually the parcel number from a tax bill; owner and address searches work too. If the official link ever moves, the Sweetwater County page on Platbookmapper keeps the current version.
Behind the map: land records in Sweetwater County
Every line on the Sweetwater County map traces back to a recorded deed or plat, and the county's recording office keeps those documents. Recording offices go by different titles from state to state, including register of deeds, recorder, county clerk and clerk of court; the official Sweetwater County website names the one that handles deeds. The parcel record often lists a deed book and page or an instrument number, which is how you request a copy of the recorded deed for a tract near Green River.
Towns, terrain and land across Sweetwater County
The county seat is Green River; Rock Springs, Bairoil, Granger, and Superior are among the other communities you can zoom to. You'll also find unincorporated communities, among them Arrowhead Springs, Clearview Acres, and Eden. Roughly 41,249 people (Census Bureau, 2023) share Sweetwater County's 10,427 square miles of land. Away from Wamsutter, expect big ownership blocks: at this density, ranch, farm and timber tracts fill most of the map. Look for Ashley National Forest and Flaming Gorge National Recreation Area on the map; the private tracts touching them are some of the most asked-about parcels in Sweetwater County.
Private and public hunting ground in Sweetwater County
Before you scout a new spot near Bairoil, pull up the parcel layer and see how many owners share that stretch of woods. Hunters headed to Ashley National Forest and Flaming Gorge National Recreation Area should check where the public boundary ends; the tracts beyond it are private. The Wyoming Game and Fish Department handles licenses, seasons and public-land maps for Sweetwater County. A landowner near Farson is more likely to say yes to a hunter who names the exact parcel and offers a phone number.
Who's clicking on Sweetwater County parcels
For a hunter with permission on one farm near Rock Springs, the parcel map shows exactly where that permission stops. People hunting for a few acres outside Wamsutter use the parcel layer to sort tracts by size and spot ones with good road access. If a listing in Granger says the yard backs up to open land, the map shows who owns that land.
Reading property lines on the Sweetwater County GIS map
On rural tracts near Farson, the parcel lines can drift from the fences on the ground, sometimes by more than a few feet. Rural Sweetwater County land sits on the federal survey grid: a deed might call out a quarter of a numbered section in a given township and range. A survey is the only document that settles where a Sweetwater County boundary actually runs.
Two things the map won't tell you
If a tract near Bairoil changed hands recently, the recorded deed is more current than the map. The acreage on a Bairoil record is what the tax roll uses, and a survey can come out different.
Sweetwater County parcel map FAQ
How do hunters use the Sweetwater County parcel map?
The map tells you who owns the woods near Farson; the owner decides whether you can hunt there.
How do I look up a property owner in Sweetwater County?
Every parcel in the Sweetwater County viewer shows an owner of record. Rural tracts near Farson can be found by panning and clicking.
Where do property lines run on a Sweetwater County, WY lot?
For a lot in Rock Springs, start with the parcel map, then get the recorded plat; a surveyor sets the exact corners.
What if the Sweetwater County map won't load?
Reload in a desktop browser; if the Sweetwater County parcel viewer still won't open, our Sweetwater County page has the current link.
Open the official Sweetwater County, WY parcel map Sweetwater 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.