Blog · October 14, 2026 · Washington
Wahkiakum County Plat Book, Washington: what to know
For acreage around Cathlamet, plat books show ownership by township; the parcel viewer shows it today.
Main page: Wahkiakum 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.
Looking for a Wahkiakum County plat book? A plat book shows owners and tract lines on township pages, useful for farms near Grays River. What this Wahkiakum County guide covers: what's in a plat book, where to find editions, and how the county viewer fills the gaps.
Tracking down a Wahkiakum County plat book
For a tract near East Cathlamet, a plat book is a privately published atlas, with owner names on each tract, often organized by township.
Opening the official parcel viewer
Begin with the Wahkiakum County ArcGIS parcel map; it covers each tax parcel in the county, Grays River included. Without an address in hand, pan along the nearest road and select the outline, whether the land is near Julia Butler Hansen National Wildlife Refuge or elsewhere in the county. For a home near East Cathlamet, save the parcel ID from that panel; every records desk in the county uses it to find the file.
Where to look for one
Older editions near Grays River turn up in libraries and historical societies, useful for family or title research.
A homemade atlas
Screenshot each section of the viewer around Cathlamet to build your own up-to-date atlas.
Current ownership online
The Wahkiakum County ArcGIS parcel map is updated more often than any atlas, for tracts near East Cathlamet.
Using it on a phone
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Lower Elochoman, though signal can drop in rural spots. A saved image of the lot near Altoona and its lines is a good backup.
Getting answers from the right desk
Anything recorded against property around Grays River come from the County Auditor, usually searchable by name or document number. Zoning, permits and septic questions near Altoona go to planning, building or health offices, depending on whether the land is inside town limits.
Who uses plat books
Farmers, hunters and appraisers near Cathlamet use plat books to see ownership across many tracts at once.
Land on the county line
The county borders Clatsop County, OR, Columbia County, OR, Cowlitz County, Lewis County, and Pacific County; every one of them runs a separate parcel map for land near Altoona. Ground near Grays River that runs to the line can be split in two county records, so open the neighboring map as well. Out toward Deep River, our state page lists every neighboring county map for Washington.
Backing up the map with records
On ground around East Cathlamet, the map is an index, not the title: deeds, subdivision plats and easements for parcels in the county sit with the County Auditor. In and around Lower Elochoman, have ready the book and page from the tax record so staff can find the deed fast.
Places you'll see on the map
Cathlamet holds the county offices, home to the main records offices. You'll also find Altoona, Deep River, East Cathlamet, and Grays River. Roughly 4,765 people call Wahkiakum County home (Census estimate, 2023) on some 263 square miles. The county was organized in 1854, and some chains of title near Lower Elochoman are long. Places such as Julia Butler Hansen National Wildlife Refuge help you orient on the aerial.
Atlas or legal document
For acreage around Deep River, 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.
Reading the legal description
Washington is laid out under the Public Land Survey System, which means a tract near Julia Butler Hansen National Wildlife Refuge is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though sections near Julia Butler Hansen National Wildlife Refuge can be irregular. Write down the legal description for the tract near Grays River when you talk to a surveyor.
Limits of the parcel data
Listed acreage is a tax-roll number; only a licensed surveyor can set the real boundary for a parcel near Grays River. Out toward Grays River, owner names and values update on a schedule, so a deed recorded last month can take weeks to appear.
Frequently asked
Should I use the Wahkiakum County ArcGIS parcel map instead?
It depends, but the county ArcGIS parcel map is free and updated more often; a printed atlas is still handy offline, at least around East Cathlamet.
Where can I buy a plat book for land near Deep River?
Out toward Cathlamet, it depends on whether a publisher has a current edition; online parcel maps fill the gaps.
Are old plat books online in Wahkiakum County?
With a lot near Lower Elochoman, some older atlases have been digitized.
Why does the plat book differ from the deed around Lower Elochoman?
If the land is near Grays River, plat book acreage and lines are approximate.
Can I print the parcel map for land near Grays River?
For a parcel near Altoona, some viewers offer PDF export; downloads of raw data vary by county.
Open the official Wahkiakum 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.