Blog · October 14, 2026 · Wyoming
Sweetwater County Plat Book, Wyoming
Printed plat books and the free online map for owners around Wamsutter.
Main page: Sweetwater County, WY GIS & Parcel Viewer (official map link, Sweetwater County facts and neighboring maps).
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Looking for a Sweetwater County plat book? Plenty of people around Green River still want a paper atlas with owner names on every section. Here's what a plat book is, where to look for one in Sweetwater County, and the free official map that stays current between editions.
What's inside a county plat book
A plat book, sometimes called a land atlas, lists each township in Sweetwater County as a page, with ownership blocks labeled by owner name and approximate acreage. Don't confuse it with a subdivision plat on file for lots in Green River; that recorded plat is a legal document, while the atlas is a reference.
Finding the tract on the Sweetwater County map
Sweetwater County publishes its parcels on the Sweetwater County parcel viewer, free to use for a lot in Bairoil or a tract around Green River. Most people track down their Sweetwater County tract fastest by searching an address in Green River, then clicking the outline. Bookmark our Sweetwater County page too; it tracks the official Wyoming link if it moves and lists the maps around Bairoil.
Finding a printed Sweetwater County plat book
Whether a current Sweetwater County edition exists varies, so ask locally in Bairoil before ordering; county offices frequently know if one is in print. Collectors and genealogists prize old Sweetwater County atlases as they display farm names and owners near Farson long before online maps.
What a plat book page lists near Bairoil
Plat book pages for Sweetwater County most frequently include an index of owners, so you can track down a family name near Wamsutter without knowing the township. Small parcels and town lots in Bairoil are frequently too small to label on an atlas page, which is another reason the online map is better for them. Genealogists in Wyoming frequently pair an old Sweetwater County atlas with deed records to follow a farm through the generations.
Making your own atlas of Sweetwater County
Comparing two Sweetwater County editions side by side lists when a farm near Granger 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 Rock Springs.
The Sweetwater County economy in brief
County Business Patterns counted 1,211 business establishments in Sweetwater County for 2022, led by retail trade, accommodation and food services, and construction. Compared with national shares, Sweetwater County leans toward support activities for mining and drilling and pipeline transportation, which shapes demand for land near Wamsutter.
Sweetwater County at a glance
Town lots cluster around Green River, the county seat, and Rock Springs, Bairoil, Granger, and Superior. Smaller places such as Arrowhead Springs, Clearview Acres, and Eden appear on the Sweetwater County map as little clusters of lots. Sweetwater County had an estimated 41,249 people in 2023 (Census Bureau), spread across about 10,427 square miles. Outside Superior, most of the county map is farm, ranch or timber ground with large, irregular tracts.
Near the Sweetwater County line
Near the edge of the county, check the next map over: Moffat County, CO, Daggett County, UT, Summit County, UT, Carbon County, and Fremont County all border it. Every map bordering Sweetwater County is listed on our Wyoming directory.
Current owners without a printed book
The Sweetwater County parcel viewer works as a living Sweetwater County plat book, with owner names and parcel lines over aerial photos of Sweetwater County. Print a screenshot of the tracts around Bairoil if you want a paper copy in the truck.
Sweetwater County, WY: common questions
Are older plat books for Sweetwater County, Wyoming online?
Check the library in Green River, local historical groups and estate sales for older Sweetwater County editions.
What is the difference between a plat book and a plat in Sweetwater County?
No; a lot in Green River answers to its recorded plat, and the county atlas is only a guide.
Is there a current plat book for Sweetwater County, Wyoming?
It depends on if a publisher has a county edition in print; local offices in Green River most frequently know.
Is the Sweetwater County, Wyoming online map better than a plat book?
For current owners near Wamsutter, yes; the county parcel viewer updates as deeds are processed.
Does a Sweetwater County plat book display property lines?
Only roughly; a Sweetwater County plat book is a reference, so a boundary survey decides the real line.
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.