Blog · October 14, 2026 · Washington
The Garfield County Plat Book and the online parcel map
With a lot near Mentor, plat books show ownership by township; the parcel viewer shows it today.
Main page: Garfield County, WA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
Want a copy of the Garfield County plat book? These atlases map who owns rural land, page by page, popular with hunters, farmers and buyers near Umatilla National Forest. In this Garfield County guide: how the atlas is organized, where to find editions, and how the county viewer fills the gaps.
Getting started with the Garfield County plat book
For property near Dodge, plat books are commercial atlases, that map ownership across the countryside, page by page across the county.
The free map to start with
Lots and tracts near Pomeroy are published on the Washington Current Parcels layer in ArcGIS Map Viewer, a viewer that needs no account. If you're looking near Mayview, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. If you're looking near Pataha, the parcel card normally shows the owner of record, assessed acreage, the parcel number and sometimes recent sales.
Editions and availability
Not every county has a current edition, try the county extension office, recorder's office or library near Gould City.
Taking the map into the field
Most viewers work in a phone browser, which helps when you're standing on land near Pomeroy, so load it before you lose signal. A saved image of the lot near Mayview and its lines is a good backup.
Which office to call
Deeds, mortgages and recorded plats for land near Mentor sit in the index kept by the County Auditor, usually searchable by name or document number. Questions about what you can build around Pomeroy go to planning, building or health offices, and the answer depends on jurisdiction.
The free online alternative
For current names, use the Washington Current Parcels layer in ArcGIS Map Viewer, across the county, whether the land is near Mayview or elsewhere in the county.
Legal descriptions in Washington
Washington uses the Public Land Survey System, so deeds around Umatilla National Forest reference sections and townships. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though corrections make some sections near Mentor odd-sized. Write down the legal description for the tract near Pomeroy before you request a deed or survey.
Getting your bearings
Pomeroy serves as the county seat, where most land records are kept. You'll also find Dodge, Gould City, Mayview, and Mentor. Around 2,363 people call Garfield County home (Census estimate, 2023) on roughly 711 square miles. Garfield County was organized in 1881, and some chains of title near Mayview are long. Features like Umatilla National Forest are easy to spot when you zoom out.
Who uses plat books
Farmers, hunters and appraisers near Mentor use plat books to see ownership across many tracts at once.
Printing your own
Screenshot each section of the viewer around Pataha to build your own up-to-date atlas.
The paper trail behind a parcel
For anything that matters, request the recorded deed from the County Auditor; the parcel line is a drawing of it, whether the land is near Umatilla National Forest or elsewhere in the county. If you're looking near Mayview, bring the instrument number listed on the parcel record so staff can find the deed fast.
Limits of the parcel data
Acreage on the record is a tax-roll number; only a licensed surveyor sets the real boundary for a parcel near Umatilla National Forest. For land near Mentor, records update in batches, so a deed recorded last month can take weeks to appear.
Next door to Garfield County
Garfield County touches Wallowa County, OR, Asotin County, Columbia County, and Whitman County; every one of them runs a separate parcel map. A tract near the line by Pataha can show up in two county records, so open the adjacent map as well. Closer to Pataha, the Platbookmapper state page links every neighboring county map for Washington.
Atlas or legal document
On ground around Pataha, don't confuse the atlas with a recorded subdivision plat: the recorded plat at the County Auditor is a legal document, and the atlas is just a guide.
Garfield County: common questions
How do I research old landowners near Mayview?
For a tract near Pomeroy, libraries and historical societies hold older editions; availability varies.
Is a plat book legal proof for land near Pomeroy?
On ground around Pomeroy, a survey sets boundaries, not an atlas; use a surveyor for lines.
How accurate are plat book acreages near Umatilla National Forest?
Atlas drawings near Mayview are simplified; they're good for orientation.
Should I use the Washington Current Parcels layer in ArcGIS Map Viewer instead for land near Mentor?
For a home near Pomeroy, the Washington Current Parcels layer in ArcGIS Map Viewer is free and updated more often; a printed atlas is still handy offline.
Who do I call about a parcel near Gould City?
On ground around Gould City, values are the County Assessor's job; recorded documents belong to the County Auditor, while zoning questions go to planning
Open the official Garfield County, WA 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.