Blog · October 14, 2026 · Wyoming
The Green River GIS Map and the county parcel viewer
Parcel data for this town comes from the county, and the viewer is free, at least around Granger.
Main page: Sweetwater County, WY GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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For a parcel in or near Green River, the Green River GIS map lays out lines, owner names and parcel numbers. Covered here for the town: which viewer to open, the fastest ways to search, and what to double-check with records, at least around Wamsutter.
Opening the Green River GIS map
In most places the county maintains the parcel layer, so for Green River the go-to is the Sweetwater County parcel viewer.
Pulling up a parcel
Parcels around Wamsutter can be looked up on the Sweetwater County parcel viewer, free to use and open without a login. Without an address in hand, pan along the nearest road until the lines appear, then click inside the one you want, whether the land is near Wamsutter or elsewhere in the county. For property near Superior, the parcel card typically gives the owner of record, acreage on the tax roll, the parcel number and sometimes recent sales.
Reading the legal description
Wyoming follows the Public Land Survey System, so deeds around Granger reference sections and townships. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though sections near Superior can be irregular. Copy the legal description from the record for the parcel near Superior before you request a deed or survey.
On site with the map
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Granger, so load it before you lose signal. A printout of the tract near Granger keeps working without signal.
City limits and county records
Green River lies within Sweetwater County, Wyoming, so its parcels are on the county's map. As the county seat, Green River hosts the courthouse, which puts the County Clerk close by. With a lot near Bairoil, city or town hall handles matters such as zoning, permits and utilities inside its limits, and the county still keeps the parcel and deed records. Acreage past the town limits near Wamsutter usually falls under county rules instead.
Finding the right lot
By address works best for lots in Green River; owner names are usually entered last name first. If you're looking near Rock Springs, searching by parcel number never misses, and it's printed on tax bills.
When a parcel crosses a boundary
Sweetwater County borders Moffat County, CO, Daggett County, UT, Summit County, UT, Carbon County, and Fremont County, all with their own assessor records. Acreage along the edge near Superior can be split across two assessors' files, so check the neighboring map too. Our state page links each neighboring county map for Wyoming.
Aerials, labels and overlays
Toggling imagery near Rock Springs to compare lines with fences and driveways.
Browser tips
When the map won't open around Granger, try a desktop browser or clear the cache; links occasionally change, and our directory page keeps the current one.
Who handles what
If the acreage or value on a parcel near Bairoil looks off are handled by the County Assessor, the office behind the parcel record. Questions about what you can build around Wamsutter are for the local planning and health departments, town or county, depending on location.
The paper trail behind a parcel
When the details count, get the recorded deed from the County Clerk; the parcel map near Superior only summarizes it. For a tract near Rock Springs, have ready the instrument number shown in the record panel so staff can find the deed fast.
Inside the parcel card
Recent sales on nearby lots near Wamsutter give a rough idea of values; an appraiser is the real authority.
Getting your bearings
Green River is the county seat, which is where the courthouse records live. You'll also find Rock Springs, Bairoil, Granger, and Superior, where town lots give way to larger tracts. Roughly 41,249 people live in Sweetwater County (Census estimate, 2023) on roughly 10,427 square miles. Sweetwater County dates to 1867, and some chains of title near Rock Springs are long. Features like Ashley National Forest help you orient on the aerial around Granger.
What the map can't tell you
The acreage figure is an estimate; only a licensed surveyor sets the real boundary for a parcel near Rock Springs. Owner names and values update on a schedule, so a recent sale near Superior can take weeks to appear.
Printing and saving
Save a screenshot of the lot near Superior and its record panel, so you have it when calling an office.
Quick answers
Can I look up a property owner on the map near Bairoil?
Usually, the parcel record for a lot near Bairoil lists the owner of record, or search by address instead.
Does Green River have its own GIS map?
For most people, Green River may publish zoning or utility maps separately; the county viewer remains the main parcel source.
Is the town GIS map free near Superior?
It depends, but the county viewer covering Green River needs no account; some sites ask you to accept a disclaimer.
What layers does the parcel viewer have for land near Granger?
For a home near Superior, many viewers offer aerial imagery plus layers like city limits, zoning or flood zones; open the layer list to see what's there.
Does the parcel map work on a phone around Superior?
The map near Wamsutter usually works on a phone; screenshots help offline.
Open the official Sweetwater County, WY 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.