PlotMyClaim · free · nothing you type leaves your browser

Plot your claim. Walk your corners.

A mining claim is described from its location certificate — a tie from a permanent monument, then the boundary: “thence S 30°00′ W, 1,500 feet…”. Type the certificate’s calls into the form and get a survey plat, walkable corner coordinates, and a Google Earth file — with the “whence” reversal, the datum, and the 30 U.S.C. size limits all checked.

Everything runs in your browser. Nothing you type is uploaded, stored, or seen by anyone. Rather have it done for you? Professional mapping services.

How it works

1 · Transcribe

Copy the bearings and distances from your document into the form below — or start from an example and swap in your own calls.

2 · Verify

The engine walks the description on the real curved Earth and runs five layers of checks: closure, acreage, statute, and more. A problem is reported, never hidden.

3 · Walk it

Download the plat, open the corners in Google Maps, or load the KML in Google Earth and stand on your boundary.

Your property fill in the form from your document — no special format to learn

Loading the survey engine (about 10 MB, cached after the first visit)…

Property / claim name

Type

Datum of the coordinates

Distance units

Bearings measured against

Where the description starts

Beginning at a point I have coordinates for (most deeds) Tie line from a monument (mining claims)

What marks the starting point

Latitude (decimal or DMS)

Longitude

Where the coordinates came from

Shortcut — paste the deed text, TerraTracer reads the calls

Fills the boundary rows below — always check each one against the document.

Boundary — each call in order, ending back at the start

Acres stated on the document (optional)

Bearings go in exactly as your document writes them: “S 0-30-00 W”, “N 89°30' W”, or an azimuth like “AZ 137.5”.

Could not read the description

Result

A description that fails its checks usually needs a professional eye — a misread call, a datum problem, or a boundary that was rough from the start. TerraMappix maps claims and parcels professionally.

Download plat print-ready HTML, works offline Download KML for Google Earth Download GeoJSON for GIS tools

Working in volume? batch & API — early access

Processing deeds or claims in bulk — a title plant, a land portfolio, a claim marketplace, a county archive? We're building batch conversion with AI-assisted extraction, every result verified by the survey engine. Tell us about your project and get early access when it ships.